Annulus Calculator Quiz

{"1":{"question":"What is the area of an annulus with small radius of 3 and large radius of 5?","answer_a":"16π","answer_b":"19π","answer_c":"14π","answer_d":"15π","answer_correct":"A","mcurl":"annulus.php?r1=5&r2=35&pl=Calculate"},"2":{"question":"What is the area of an annulus with small radius of 2 and large radius of 6?","answer_a":"32π","answer_b":"29π","answer_c":"33π","answer_d":"34π","answer_correct":"A","mcurl":"annulus.php?r1=6&r2=25&pl=Calculate"},"3":{"question":"An annulus has small radius of 5 and large radius of 7. Calculate the area.","answer_a":"26π","answer_b":"25π","answer_c":"24π","answer_d":"21π","answer_correct":"C","mcurl":"annulus.php?r1=7&r2=55&pl=Calculate"},"4":{"question":"An annulus has small radius of 6 and large radius of 8. Calculate the area.","answer_a":"27π","answer_b":"30π","answer_c":"28π","answer_d":"31π","answer_correct":"C","mcurl":"annulus.php?r1=8&r2=65&pl=Calculate"},"5":{"question":"An annulus has small radius of 8 and large radius of 9. Calculate the area.","answer_a":"16π","answer_b":"14π","answer_c":"15π","answer_d":"17π","answer_correct":"D","mcurl":"annulus.php?r1=9&r2=85&pl=Calculate"},"6":{"question":"What is the area of an annulus with small radius of 9 and large radius of 10?","answer_a":"22π","answer_b":"21π","answer_c":"19π","answer_d":"20π","answer_correct":"C","mcurl":"annulus.php?r1=10&r2=95&pl=Calculate"},"7":{"question":"An annulus has small radius of 10 and large radius of 11. Calculate the area.","answer_a":"20π","answer_b":"19π","answer_c":"18π","answer_d":"21π","answer_correct":"D","mcurl":"annulus.php?r1=11&r2=105&pl=Calculate"},"8":{"question":"What is the area of an annulus with small radius of 10 and large radius of 12?","answer_a":"44π","answer_b":"42π","answer_c":"43π","answer_d":"47π","answer_correct":"A","mcurl":"annulus.php?r1=12&r2=105&pl=Calculate"},"9":{"question":"What is the area of an annulus with small radius of 10 and large radius of 13?","answer_a":"71π","answer_b":"66π","answer_c":"69π","answer_d":"70π","answer_correct":"C","mcurl":"annulus.php?r1=13&r2=105&pl=Calculate"},"10":{"question":"An annulus has small radius of 11 and large radius of 14. Calculate the area.","answer_a":"76π","answer_b":"72π","answer_c":"73π","answer_d":"75π","answer_correct":"D","mcurl":"annulus.php?r1=14&r2=115&pl=Calculate"},"11":{"question":"An annulus has small radius of 13 and large radius of 15. Calculate the area.","answer_a":"57π","answer_b":"59π","answer_c":"58π","answer_d":"56π","answer_correct":"D","mcurl":"annulus.php?r1=15&r2=135&pl=Calculate"},"12":{"question":"An annulus has small radius of 14 and large radius of 16. Calculate the area.","answer_a":"62π","answer_b":"57π","answer_c":"59π","answer_d":"60π","answer_correct":"D","mcurl":"annulus.php?r1=16&r2=145&pl=Calculate"},"13":{"question":"What is the area of an annulus with small radius of 15 and large radius of 17?","answer_a":"64π","answer_b":"61π","answer_c":"65π","answer_d":"62π","answer_correct":"A","mcurl":"annulus.php?r1=17&r2=155&pl=Calculate"},"14":{"question":"An annulus has small radius of 16 and large radius of 18. Calculate the area.","answer_a":"66π","answer_b":"71π","answer_c":"69π","answer_d":"68π","answer_correct":"D","mcurl":"annulus.php?r1=18&r2=165&pl=Calculate"},"15":{"question":"An annulus has small radius of 16 and large radius of 19. Calculate the area.","answer_a":"103π","answer_b":"106π","answer_c":"108π","answer_d":"105π","answer_correct":"D","mcurl":"annulus.php?r1=19&r2=165&pl=Calculate"},"16":{"question":"An annulus has small radius of 18 and large radius of 20. Calculate the area.","answer_a":"76π","answer_b":"74π","answer_c":"73π","answer_d":"75π","answer_correct":"A","mcurl":"annulus.php?r1=20&r2=185&pl=Calculate"},"17":{"question":"What is the area of an annulus with small radius of 19 and large radius of 21?","answer_a":"82π","answer_b":"77π","answer_c":"81π","answer_d":"80π","answer_correct":"D","mcurl":"annulus.php?r1=21&r2=195&pl=Calculate"},"18":{"question":"What is the area of an annulus with small radius of 21 and large radius of 22?","answer_a":"42π","answer_b":"40π","answer_c":"41π","answer_d":"43π","answer_correct":"D","mcurl":"annulus.php?r1=22&r2=215&pl=Calculate"},"19":{"question":"What is the area of an annulus with small radius of 22 and large radius of 23?","answer_a":"48π","answer_b":"44π","answer_c":"45π","answer_d":"47π","answer_correct":"C","mcurl":"annulus.php?r1=23&r2=225&pl=Calculate"},"20":{"question":"What is the area of an annulus with small radius of 23 and large radius of 24?","answer_a":"46π","answer_b":"47π","answer_c":"45π","answer_d":"50π","answer_correct":"B","mcurl":"annulus.php?r1=24&r2=235&pl=Calculate"},"21":{"question":"An annulus has small radius of 23 and large radius of 25. Calculate the area.","answer_a":"94π","answer_b":"95π","answer_c":"93π","answer_d":"96π","answer_correct":"D","mcurl":"annulus.php?r1=25&r2=235&pl=Calculate"},"22":{"question":"An annulus has small radius of 25 and large radius of 26. Calculate the area.","answer_a":"52π","answer_b":"54π","answer_c":"51π","answer_d":"49π","answer_correct":"C","mcurl":"annulus.php?r1=26&r2=255&pl=Calculate"},"23":{"question":"An annulus has small radius of 24 and large radius of 27. Calculate the area.","answer_a":"152π","answer_b":"155π","answer_c":"153π","answer_d":"156π","answer_correct":"C","mcurl":"annulus.php?r1=27&r2=245&pl=Calculate"},"24":{"question":"What is the area of an annulus with small radius of 27 and large radius of 28?","answer_a":"55π","answer_b":"52π","answer_c":"53π","answer_d":"56π","answer_correct":"A","mcurl":"annulus.php?r1=28&r2=275&pl=Calculate"},"25":{"question":"What is the area of an annulus with small radius of 27 and large radius of 29?","answer_a":"109π","answer_b":"111π","answer_c":"114π","answer_d":"112π","answer_correct":"D","mcurl":"annulus.php?r1=29&r2=275&pl=Calculate"},"26":{"question":"An annulus has small radius of 27 and large radius of 30. Calculate the area.","answer_a":"169π","answer_b":"171π","answer_c":"174π","answer_d":"170π","answer_correct":"B","mcurl":"annulus.php?r1=30&r2=275&pl=Calculate"},"27":{"question":"What is the area of an annulus with small radius of 28 and large radius of 31?","answer_a":"177π","answer_b":"179π","answer_c":"180π","answer_d":"176π","answer_correct":"A","mcurl":"annulus.php?r1=31&r2=285&pl=Calculate"},"28":{"question":"What is the area of an annulus with small radius of 31 and large radius of 32?","answer_a":"62π","answer_b":"65π","answer_c":"63π","answer_d":"60π","answer_correct":"C","mcurl":"annulus.php?r1=32&r2=315&pl=Calculate"},"29":{"question":"What is the area of an annulus with small radius of 31 and large radius of 33?","answer_a":"129π","answer_b":"126π","answer_c":"128π","answer_d":"131π","answer_correct":"C","mcurl":"annulus.php?r1=33&r2=315&pl=Calculate"},"30":{"question":"What is the area of an annulus with small radius of 31 and large radius of 34?","answer_a":"193π","answer_b":"192π","answer_c":"195π","answer_d":"196π","answer_correct":"C","mcurl":"annulus.php?r1=34&r2=315&pl=Calculate"},"31":{"question":"What is the area of an annulus with small radius of 34 and large radius of 35?","answer_a":"69π","answer_b":"67π","answer_c":"70π","answer_d":"72π","answer_correct":"A","mcurl":"annulus.php?r1=35&r2=345&pl=Calculate"},"32":{"question":"An annulus has small radius of 32 and large radius of 36. Calculate the area.","answer_a":"272π","answer_b":"271π","answer_c":"274π","answer_d":"269π","answer_correct":"A","mcurl":"annulus.php?r1=36&r2=325&pl=Calculate"},"33":{"question":"What is the area of an annulus with small radius of 36 and large radius of 37?","answer_a":"72π","answer_b":"71π","answer_c":"73π","answer_d":"70π","answer_correct":"C","mcurl":"annulus.php?r1=37&r2=365&pl=Calculate"},"34":{"question":"What is the area of an annulus with small radius of 37 and large radius of 38?","answer_a":"77π","answer_b":"75π","answer_c":"78π","answer_d":"74π","answer_correct":"B","mcurl":"annulus.php?r1=38&r2=375&pl=Calculate"},"35":{"question":"What is the area of an annulus with small radius of 36 and large radius of 39?","answer_a":"227π","answer_b":"225π","answer_c":"222π","answer_d":"226π","answer_correct":"B","mcurl":"annulus.php?r1=39&r2=365&pl=Calculate"},"36":{"question":"An annulus has small radius of 37 and large radius of 40. Calculate the area.","answer_a":"230π","answer_b":"234π","answer_c":"231π","answer_d":"233π","answer_correct":"C","mcurl":"annulus.php?r1=40&r2=375&pl=Calculate"},"37":{"question":"An annulus has small radius of 39 and large radius of 41. Calculate the area.","answer_a":"160π","answer_b":"158π","answer_c":"163π","answer_d":"161π","answer_correct":"A","mcurl":"annulus.php?r1=41&r2=395&pl=Calculate"},"38":{"question":"What is the area of an annulus with small radius of 38 and large radius of 42?","answer_a":"321π","answer_b":"323π","answer_c":"320π","answer_d":"322π","answer_correct":"C","mcurl":"annulus.php?r1=42&r2=385&pl=Calculate"},"39":{"question":"What is the area of an annulus with small radius of 39 and large radius of 43?","answer_a":"327π","answer_b":"330π","answer_c":"325π","answer_d":"328π","answer_correct":"D","mcurl":"annulus.php?r1=43&r2=395&pl=Calculate"},"40":{"question":"An annulus has small radius of 40 and large radius of 44. Calculate the area.","answer_a":"335π","answer_b":"333π","answer_c":"336π","answer_d":"334π","answer_correct":"C","mcurl":"annulus.php?r1=44&r2=405&pl=Calculate"},"41":{"question":"An annulus has small radius of 41 and large radius of 45. Calculate the area.","answer_a":"343π","answer_b":"346π","answer_c":"341π","answer_d":"344π","answer_correct":"D","mcurl":"annulus.php?r1=45&r2=415&pl=Calculate"},"42":{"question":"An annulus has small radius of 44 and large radius of 46. Calculate the area.","answer_a":"177π","answer_b":"180π","answer_c":"178π","answer_d":"179π","answer_correct":"B","mcurl":"annulus.php?r1=46&r2=445&pl=Calculate"},"43":{"question":"What is the area of an annulus with small radius of 43 and large radius of 47?","answer_a":"360π","answer_b":"358π","answer_c":"363π","answer_d":"359π","answer_correct":"A","mcurl":"annulus.php?r1=47&r2=435&pl=Calculate"},"44":{"question":"What is the area of an annulus with small radius of 45 and large radius of 48?","answer_a":"279π","answer_b":"282π","answer_c":"281π","answer_d":"280π","answer_correct":"A","mcurl":"annulus.php?r1=48&r2=455&pl=Calculate"},"45":{"question":"What is the area of an annulus with small radius of 45 and large radius of 49?","answer_a":"376π","answer_b":"375π","answer_c":"378π","answer_d":"373π","answer_correct":"A","mcurl":"annulus.php?r1=49&r2=455&pl=Calculate"},"46":{"question":"What is the area of an annulus with small radius of 47 and large radius of 50?","answer_a":"291π","answer_b":"294π","answer_c":"292π","answer_d":"293π","answer_correct":"A","mcurl":"annulus.php?r1=50&r2=475&pl=Calculate"},"47":{"question":"What is the area of an annulus with small radius of 50 and large radius of 51?","answer_a":"101π","answer_b":"100π","answer_c":"99π","answer_d":"98π","answer_correct":"A","mcurl":"annulus.php?r1=51&r2=505&pl=Calculate"},"48":{"question":"What is the area of an annulus with small radius of 51 and large radius of 52?","answer_a":"104π","answer_b":"103π","answer_c":"101π","answer_d":"106π","answer_correct":"B","mcurl":"annulus.php?r1=52&r2=515&pl=Calculate"},"49":{"question":"What is the area of an annulus with small radius of 52 and large radius of 53?","answer_a":"103π","answer_b":"104π","answer_c":"108π","answer_d":"105π","answer_correct":"D","mcurl":"annulus.php?r1=53&r2=525&pl=Calculate"},"50":{"question":"An annulus has small radius of 50 and large radius of 54. Calculate the area.","answer_a":"416π","answer_b":"418π","answer_c":"415π","answer_d":"419π","answer_correct":"A","mcurl":"annulus.php?r1=54&r2=505&pl=Calculate"},"51":{"question":"An annulus has small radius of 51 and large radius of 55. Calculate the area.","answer_a":"427π","answer_b":"424π","answer_c":"425π","answer_d":"422π","answer_correct":"B","mcurl":"annulus.php?r1=55&r2=515&pl=Calculate"},"52":{"question":"What is the area of an annulus with small radius of 52 and large radius of 56?","answer_a":"435π","answer_b":"432π","answer_c":"430π","answer_d":"433π","answer_correct":"B","mcurl":"annulus.php?r1=56&r2=525&pl=Calculate"},"53":{"question":"An annulus has small radius of 54 and large radius of 57. Calculate the area.","answer_a":"332π","answer_b":"333π","answer_c":"330π","answer_d":"335π","answer_correct":"B","mcurl":"annulus.php?r1=57&r2=545&pl=Calculate"},"54":{"question":"An annulus has small radius of 56 and large radius of 58. Calculate the area.","answer_a":"228π","answer_b":"227π","answer_c":"225π","answer_d":"226π","answer_correct":"A","mcurl":"annulus.php?r1=58&r2=565&pl=Calculate"},"55":{"question":"What is the area of an annulus with small radius of 55 and large radius of 59?","answer_a":"459π","answer_b":"455π","answer_c":"456π","answer_d":"458π","answer_correct":"C","mcurl":"annulus.php?r1=59&r2=555&pl=Calculate"},"56":{"question":"An annulus has small radius of 59 and large radius of 60. Calculate the area.","answer_a":"121π","answer_b":"120π","answer_c":"119π","answer_d":"116π","answer_correct":"C","mcurl":"annulus.php?r1=60&r2=595&pl=Calculate"},"57":{"question":"An annulus has small radius of 58 and large radius of 61. Calculate the area.","answer_a":"357π","answer_b":"354π","answer_c":"355π","answer_d":"356π","answer_correct":"A","mcurl":"annulus.php?r1=61&r2=585&pl=Calculate"},"58":{"question":"What is the area of an annulus with small radius of 58 and large radius of 62?","answer_a":"479π","answer_b":"483π","answer_c":"480π","answer_d":"478π","answer_correct":"C","mcurl":"annulus.php?r1=62&r2=585&pl=Calculate"},"59":{"question":"What is the area of an annulus with small radius of 62 and large radius of 63?","answer_a":"126π","answer_b":"122π","answer_c":"127π","answer_d":"125π","answer_correct":"D","mcurl":"annulus.php?r1=63&r2=625&pl=Calculate"},"60":{"question":"What is the area of an annulus with small radius of 60 and large radius of 64?","answer_a":"499π","answer_b":"497π","answer_c":"498π","answer_d":"496π","answer_correct":"D","mcurl":"annulus.php?r1=64&r2=605&pl=Calculate"},"61":{"question":"An annulus has small radius of 64 and large radius of 65. Calculate the area.","answer_a":"129π","answer_b":"126π","answer_c":"127π","answer_d":"128π","answer_correct":"A","mcurl":"annulus.php?r1=65&r2=645&pl=Calculate"},"62":{"question":"An annulus has small radius of 62 and large radius of 66. Calculate the area.","answer_a":"513π","answer_b":"512π","answer_c":"515π","answer_d":"514π","answer_correct":"B","mcurl":"annulus.php?r1=66&r2=625&pl=Calculate"},"63":{"question":"An annulus has small radius of 63 and large radius of 67. Calculate the area.","answer_a":"517π","answer_b":"518π","answer_c":"521π","answer_d":"520π","answer_correct":"D","mcurl":"annulus.php?r1=67&r2=635&pl=Calculate"},"64":{"question":"What is the area of an annulus with small radius of 65 and large radius of 68?","answer_a":"399π","answer_b":"397π","answer_c":"398π","answer_d":"402π","answer_correct":"A","mcurl":"annulus.php?r1=68&r2=655&pl=Calculate"},"65":{"question":"An annulus has small radius of 66 and large radius of 69. Calculate the area.","answer_a":"405π","answer_b":"406π","answer_c":"402π","answer_d":"403π","answer_correct":"A","mcurl":"annulus.php?r1=69&r2=665&pl=Calculate"},"66":{"question":"What is the area of an annulus with small radius of 68 and large radius of 70?","answer_a":"275π","answer_b":"273π","answer_c":"276π","answer_d":"274π","answer_correct":"C","mcurl":"annulus.php?r1=70&r2=685&pl=Calculate"},"67":{"question":"An annulus has small radius of 68 and large radius of 71. Calculate the area.","answer_a":"419π","answer_b":"420π","answer_c":"417π","answer_d":"418π","answer_correct":"C","mcurl":"annulus.php?r1=71&r2=685&pl=Calculate"},"68":{"question":"What is the area of an annulus with small radius of 68 and large radius of 72?","answer_a":"561π","answer_b":"557π","answer_c":"558π","answer_d":"560π","answer_correct":"D","mcurl":"annulus.php?r1=72&r2=685&pl=Calculate"},"69":{"question":"What is the area of an annulus with small radius of 69 and large radius of 73?","answer_a":"568π","answer_b":"567π","answer_c":"565π","answer_d":"566π","answer_correct":"A","mcurl":"annulus.php?r1=73&r2=695&pl=Calculate"},"70":{"question":"What is the area of an annulus with small radius of 73 and large radius of 74?","answer_a":"148π","answer_b":"144π","answer_c":"149π","answer_d":"147π","answer_correct":"D","mcurl":"annulus.php?r1=74&r2=735&pl=Calculate"},"71":{"question":"What is the area of an annulus with small radius of 74 and large radius of 75?","answer_a":"149π","answer_b":"147π","answer_c":"152π","answer_d":"148π","answer_correct":"A","mcurl":"annulus.php?r1=75&r2=745&pl=Calculate"},"72":{"question":"What is the area of an annulus with small radius of 73 and large radius of 76?","answer_a":"447π","answer_b":"445π","answer_c":"450π","answer_d":"448π","answer_correct":"A","mcurl":"annulus.php?r1=76&r2=735&pl=Calculate"},"73":{"question":"An annulus has small radius of 75 and large radius of 77. Calculate the area.","answer_a":"306π","answer_b":"303π","answer_c":"301π","answer_d":"304π","answer_correct":"D","mcurl":"annulus.php?r1=77&r2=755&pl=Calculate"},"74":{"question":"What is the area of an annulus with small radius of 74 and large radius of 78?","answer_a":"609π","answer_b":"605π","answer_c":"610π","answer_d":"608π","answer_correct":"D","mcurl":"annulus.php?r1=78&r2=745&pl=Calculate"},"75":{"question":"What is the area of an annulus with small radius of 77 and large radius of 79?","answer_a":"313π","answer_b":"310π","answer_c":"312π","answer_d":"315π","answer_correct":"C","mcurl":"annulus.php?r1=79&r2=775&pl=Calculate"},"76":{"question":"An annulus has small radius of 77 and large radius of 80. Calculate the area.","answer_a":"471π","answer_b":"469π","answer_c":"470π","answer_d":"474π","answer_correct":"A","mcurl":"annulus.php?r1=80&r2=775&pl=Calculate"},"77":{"question":"What is the area of an annulus with small radius of 80 and large radius of 81?","answer_a":"161π","answer_b":"163π","answer_c":"160π","answer_d":"164π","answer_correct":"A","mcurl":"annulus.php?r1=81&r2=805&pl=Calculate"},"78":{"question":"An annulus has small radius of 79 and large radius of 82. Calculate the area.","answer_a":"486π","answer_b":"481π","answer_c":"484π","answer_d":"483π","answer_correct":"D","mcurl":"annulus.php?r1=82&r2=795&pl=Calculate"},"79":{"question":"What is the area of an annulus with small radius of 80 and large radius of 83?","answer_a":"490π","answer_b":"486π","answer_c":"491π","answer_d":"489π","answer_correct":"D","mcurl":"annulus.php?r1=83&r2=805&pl=Calculate"},"80":{"question":"An annulus has small radius of 80 and large radius of 84. Calculate the area.","answer_a":"653π","answer_b":"654π","answer_c":"657π","answer_d":"656π","answer_correct":"D","mcurl":"annulus.php?r1=84&r2=805&pl=Calculate"},"81":{"question":"An annulus has small radius of 81 and large radius of 85. Calculate the area.","answer_a":"664π","answer_b":"666π","answer_c":"661π","answer_d":"665π","answer_correct":"A","mcurl":"annulus.php?r1=85&r2=815&pl=Calculate"},"82":{"question":"What is the area of an annulus with small radius of 82 and large radius of 86?","answer_a":"669π","answer_b":"671π","answer_c":"672π","answer_d":"674π","answer_correct":"C","mcurl":"annulus.php?r1=86&r2=825&pl=Calculate"},"83":{"question":"What is the area of an annulus with small radius of 86 and large radius of 87?","answer_a":"174π","answer_b":"170π","answer_c":"173π","answer_d":"175π","answer_correct":"C","mcurl":"annulus.php?r1=87&r2=865&pl=Calculate"},"84":{"question":"An annulus has small radius of 84 and large radius of 88. Calculate the area.","answer_a":"690π","answer_b":"685π","answer_c":"689π","answer_d":"688π","answer_correct":"D","mcurl":"annulus.php?r1=88&r2=845&pl=Calculate"},"85":{"question":"What is the area of an annulus with small radius of 88 and large radius of 89?","answer_a":"174π","answer_b":"177π","answer_c":"178π","answer_d":"179π","answer_correct":"B","mcurl":"annulus.php?r1=89&r2=885&pl=Calculate"},"86":{"question":"What is the area of an annulus with small radius of 88 and large radius of 90?","answer_a":"357π","answer_b":"356π","answer_c":"353π","answer_d":"354π","answer_correct":"B","mcurl":"annulus.php?r1=90&r2=885&pl=Calculate"},"87":{"question":"An annulus has small radius of 87 and large radius of 91. Calculate the area.","answer_a":"715π","answer_b":"712π","answer_c":"714π","answer_d":"713π","answer_correct":"B","mcurl":"annulus.php?r1=91&r2=875&pl=Calculate"},"88":{"question":"An annulus has small radius of 90 and large radius of 92. Calculate the area.","answer_a":"365π","answer_b":"364π","answer_c":"367π","answer_d":"366π","answer_correct":"B","mcurl":"annulus.php?r1=92&r2=905&pl=Calculate"},"89":{"question":"What is the area of an annulus with small radius of 91 and large radius of 93?","answer_a":"368π","answer_b":"371π","answer_c":"367π","answer_d":"370π","answer_correct":"A","mcurl":"annulus.php?r1=93&r2=915&pl=Calculate"},"90":{"question":"An annulus has small radius of 93 and large radius of 94. Calculate the area.","answer_a":"184π","answer_b":"185π","answer_c":"187π","answer_d":"186π","answer_correct":"C","mcurl":"annulus.php?r1=94&r2=935&pl=Calculate"},"91":{"question":"What is the area of an annulus with small radius of 91 and large radius of 95?","answer_a":"743π","answer_b":"747π","answer_c":"742π","answer_d":"744π","answer_correct":"D","mcurl":"annulus.php?r1=95&r2=915&pl=Calculate"},"92":{"question":"An annulus has small radius of 94 and large radius of 96. Calculate the area.","answer_a":"381π","answer_b":"377π","answer_c":"382π","answer_d":"380π","answer_correct":"D","mcurl":"annulus.php?r1=96&r2=945&pl=Calculate"},"93":{"question":"An annulus has small radius of 96 and large radius of 97. Calculate the area.","answer_a":"191π","answer_b":"193π","answer_c":"192π","answer_d":"190π","answer_correct":"B","mcurl":"annulus.php?r1=97&r2=965&pl=Calculate"},"94":{"question":"An annulus has small radius of 94 and large radius of 98. Calculate the area.","answer_a":"765π","answer_b":"767π","answer_c":"768π","answer_d":"770π","answer_correct":"C","mcurl":"annulus.php?r1=98&r2=945&pl=Calculate"},"95":{"question":"What is the area of an annulus with small radius of 95 and large radius of 99?","answer_a":"779π","answer_b":"774π","answer_c":"777π","answer_d":"776π","answer_correct":"D","mcurl":"annulus.php?r1=99&r2=955&pl=Calculate"},"96":{"question":"An annulus has small radius of 99 and large radius of 100. Calculate the area.","answer_a":"198π","answer_b":"199π","answer_c":"202π","answer_d":"197π","answer_correct":"B","mcurl":"annulus.php?r1=100&r2=995&pl=Calculate"},"97":{"question":"What is the area of an annulus with small radius of 97 and large radius of 101?","answer_a":"793π","answer_b":"792π","answer_c":"795π","answer_d":"790π","answer_correct":"B","mcurl":"annulus.php?r1=101&r2=975&pl=Calculate"},"98":{"question":"An annulus has small radius of 101 and large radius of 102. Calculate the area.","answer_a":"203π","answer_b":"201π","answer_c":"202π","answer_d":"200π","answer_correct":"A","mcurl":"annulus.php?r1=102&r2=1015&pl=Calculate"},"99":{"question":"What is the area of an annulus with small radius of 100 and large radius of 103?","answer_a":"608π","answer_b":"609π","answer_c":"612π","answer_d":"611π","answer_correct":"B","mcurl":"annulus.php?r1=103&r2=1005&pl=Calculate"},"100":{"question":"An annulus has small radius of 102 and large radius of 104. Calculate the area.","answer_a":"412π","answer_b":"415π","answer_c":"410π","answer_d":"413π","answer_correct":"A","mcurl":"annulus.php?r1=104&r2=1025&pl=Calculate"},"101":{"question":"An annulus has small radius of 104 and large radius of 105. Calculate the area.","answer_a":"209π","answer_b":"208π","answer_c":"207π","answer_d":"212π","answer_correct":"A","mcurl":"annulus.php?r1=105&r2=1045&pl=Calculate"},"102":{"question":"What is the area of an annulus with small radius of 102 and large radius of 106?","answer_a":"832π","answer_b":"830π","answer_c":"829π","answer_d":"833π","answer_correct":"A","mcurl":"annulus.php?r1=106&r2=1025&pl=Calculate"},"103":{"question":"What is the area of an annulus with small radius of 105 and large radius of 107?","answer_a":"424π","answer_b":"425π","answer_c":"421π","answer_d":"422π","answer_correct":"A","mcurl":"annulus.php?r1=107&r2=1055&pl=Calculate"},"104":{"question":"What is the area of an annulus with small radius of 107 and large radius of 108?","answer_a":"213π","answer_b":"212π","answer_c":"214π","answer_d":"215π","answer_correct":"D","mcurl":"annulus.php?r1=108&r2=1075&pl=Calculate"},"105":{"question":"An annulus has small radius of 105 and large radius of 109. Calculate the area.","answer_a":"856π","answer_b":"857π","answer_c":"853π","answer_d":"854π","answer_correct":"A","mcurl":"annulus.php?r1=109&r2=1055&pl=Calculate"},"106":{"question":"An annulus has small radius of 108 and large radius of 110. Calculate the area.","answer_a":"439π","answer_b":"436π","answer_c":"435π","answer_d":"438π","answer_correct":"B","mcurl":"annulus.php?r1=110&r2=1085&pl=Calculate"},"107":{"question":"An annulus has small radius of 110 and large radius of 111. Calculate the area.","answer_a":"221π","answer_b":"222π","answer_c":"219π","answer_d":"218π","answer_correct":"A","mcurl":"annulus.php?r1=111&r2=1105&pl=Calculate"},"108":{"question":"An annulus has small radius of 111 and large radius of 112. Calculate the area.","answer_a":"224π","answer_b":"221π","answer_c":"223π","answer_d":"226π","answer_correct":"C","mcurl":"annulus.php?r1=112&r2=1115&pl=Calculate"},"109":{"question":"What is the area of an annulus with small radius of 109 and large radius of 113?","answer_a":"889π","answer_b":"890π","answer_c":"888π","answer_d":"891π","answer_correct":"C","mcurl":"annulus.php?r1=113&r2=1095&pl=Calculate"},"110":{"question":"What is the area of an annulus with small radius of 113 and large radius of 114?","answer_a":"227π","answer_b":"229π","answer_c":"224π","answer_d":"226π","answer_correct":"A","mcurl":"annulus.php?r1=114&r2=1135&pl=Calculate"},"111":{"question":"An annulus has small radius of 111 and large radius of 115. Calculate the area.","answer_a":"901π","answer_b":"902π","answer_c":"904π","answer_d":"903π","answer_correct":"C","mcurl":"annulus.php?r1=115&r2=1115&pl=Calculate"},"112":{"question":"What is the area of an annulus with small radius of 115 and large radius of 116?","answer_a":"232π","answer_b":"231π","answer_c":"228π","answer_d":"229π","answer_correct":"B","mcurl":"annulus.php?r1=116&r2=1155&pl=Calculate"},"113":{"question":"What is the area of an annulus with small radius of 113 and large radius of 117?","answer_a":"920π","answer_b":"922π","answer_c":"917π","answer_d":"921π","answer_correct":"A","mcurl":"annulus.php?r1=117&r2=1135&pl=Calculate"},"114":{"question":"What is the area of an annulus with small radius of 115 and large radius of 118?","answer_a":"696π","answer_b":"697π","answer_c":"700π","answer_d":"699π","answer_correct":"D","mcurl":"annulus.php?r1=118&r2=1155&pl=Calculate"},"115":{"question":"What is the area of an annulus with small radius of 117 and large radius of 119?","answer_a":"474π","answer_b":"472π","answer_c":"473π","answer_d":"475π","answer_correct":"B","mcurl":"annulus.php?r1=119&r2=1175&pl=Calculate"},"116":{"question":"An annulus has small radius of 118 and large radius of 120. Calculate the area.","answer_a":"479π","answer_b":"478π","answer_c":"476π","answer_d":"475π","answer_correct":"C","mcurl":"annulus.php?r1=120&r2=1185&pl=Calculate"},"117":{"question":"An annulus has small radius of 119 and large radius of 121. Calculate the area.","answer_a":"477π","answer_b":"480π","answer_c":"479π","answer_d":"482π","answer_correct":"B","mcurl":"annulus.php?r1=121&r2=1195&pl=Calculate"},"118":{"question":"What is the area of an annulus with small radius of 121 and large radius of 122?","answer_a":"244π","answer_b":"241π","answer_c":"243π","answer_d":"246π","answer_correct":"C","mcurl":"annulus.php?r1=122&r2=1215&pl=Calculate"},"119":{"question":"An annulus has small radius of 120 and large radius of 123. Calculate the area.","answer_a":"732π","answer_b":"730π","answer_c":"731π","answer_d":"729π","answer_correct":"D","mcurl":"annulus.php?r1=123&r2=1205&pl=Calculate"},"120":{"question":"What is the area of an annulus with small radius of 120 and large radius of 124?","answer_a":"979π","answer_b":"976π","answer_c":"974π","answer_d":"975π","answer_correct":"B","mcurl":"annulus.php?r1=124&r2=1205&pl=Calculate"},"121":{"question":"What is the area of an annulus with small radius of 121 and large radius of 125?","answer_a":"984π","answer_b":"982π","answer_c":"985π","answer_d":"987π","answer_correct":"A","mcurl":"annulus.php?r1=125&r2=1215&pl=Calculate"},"122":{"question":"An annulus has small radius of 122 and large radius of 126. Calculate the area.","answer_a":"989π","answer_b":"993π","answer_c":"994π","answer_d":"992π","answer_correct":"D","mcurl":"annulus.php?r1=126&r2=1225&pl=Calculate"},"123":{"question":"An annulus has small radius of 123 and large radius of 127. Calculate the area.","answer_a":"999π","answer_b":"998π","answer_c":"997π","answer_d":"1000π","answer_correct":"D","mcurl":"annulus.php?r1=127&r2=1235&pl=Calculate"},"124":{"question":"An annulus has small radius of 125 and large radius of 128. Calculate the area.","answer_a":"762π","answer_b":"757π","answer_c":"759π","answer_d":"758π","answer_correct":"C","mcurl":"annulus.php?r1=128&r2=1255&pl=Calculate"},"125":{"question":"An annulus has small radius of 126 and large radius of 129. Calculate the area.","answer_a":"763π","answer_b":"766π","answer_c":"765π","answer_d":"762π","answer_correct":"C","mcurl":"annulus.php?r1=129&r2=1265&pl=Calculate"},"126":{"question":"An annulus has small radius of 129 and large radius of 130. Calculate the area.","answer_a":"257π","answer_b":"262π","answer_c":"259π","answer_d":"260π","answer_correct":"C","mcurl":"annulus.php?r1=130&r2=1295&pl=Calculate"},"127":{"question":"An annulus has small radius of 128 and large radius of 131. Calculate the area.","answer_a":"777π","answer_b":"780π","answer_c":"779π","answer_d":"776π","answer_correct":"A","mcurl":"annulus.php?r1=131&r2=1285&pl=Calculate"},"128":{"question":"What is the area of an annulus with small radius of 130 and large radius of 132?","answer_a":"523π","answer_b":"524π","answer_c":"522π","answer_d":"527π","answer_correct":"B","mcurl":"annulus.php?r1=132&r2=1305&pl=Calculate"},"129":{"question":"An annulus has small radius of 131 and large radius of 133. Calculate the area.","answer_a":"531π","answer_b":"527π","answer_c":"526π","answer_d":"528π","answer_correct":"D","mcurl":"annulus.php?r1=133&r2=1315&pl=Calculate"},"130":{"question":"An annulus has small radius of 133 and large radius of 134. Calculate the area.","answer_a":"268π","answer_b":"267π","answer_c":"269π","answer_d":"270π","answer_correct":"B","mcurl":"annulus.php?r1=134&r2=1335&pl=Calculate"},"131":{"question":"What is the area of an annulus with small radius of 133 and large radius of 135?","answer_a":"538π","answer_b":"533π","answer_c":"536π","answer_d":"535π","answer_correct":"C","mcurl":"annulus.php?r1=135&r2=1335&pl=Calculate"},"132":{"question":"What is the area of an annulus with small radius of 135 and large radius of 136?","answer_a":"271π","answer_b":"269π","answer_c":"272π","answer_d":"268π","answer_correct":"A","mcurl":"annulus.php?r1=136&r2=1355&pl=Calculate"},"133":{"question":"An annulus has small radius of 134 and large radius of 137. Calculate the area.","answer_a":"812π","answer_b":"811π","answer_c":"813π","answer_d":"810π","answer_correct":"C","mcurl":"annulus.php?r1=137&r2=1345&pl=Calculate"},"134":{"question":"An annulus has small radius of 135 and large radius of 138. Calculate the area.","answer_a":"822π","answer_b":"818π","answer_c":"817π","answer_d":"819π","answer_correct":"D","mcurl":"annulus.php?r1=138&r2=1355&pl=Calculate"},"135":{"question":"What is the area of an annulus with small radius of 136 and large radius of 139?","answer_a":"823π","answer_b":"824π","answer_c":"822π","answer_d":"825π","answer_correct":"D","mcurl":"annulus.php?r1=139&r2=1365&pl=Calculate"},"136":{"question":"What is the area of an annulus with small radius of 139 and large radius of 140?","answer_a":"277π","answer_b":"279π","answer_c":"282π","answer_d":"278π","answer_correct":"B","mcurl":"annulus.php?r1=140&r2=1395&pl=Calculate"},"137":{"question":"What is the area of an annulus with small radius of 140 and large radius of 141?","answer_a":"284π","answer_b":"281π","answer_c":"280π","answer_d":"279π","answer_correct":"B","mcurl":"annulus.php?r1=141&r2=1405&pl=Calculate"},"138":{"question":"What is the area of an annulus with small radius of 141 and large radius of 142?","answer_a":"282π","answer_b":"285π","answer_c":"283π","answer_d":"280π","answer_correct":"C","mcurl":"annulus.php?r1=142&r2=1415&pl=Calculate"},"139":{"question":"An annulus has small radius of 140 and large radius of 143. Calculate the area.","answer_a":"849π","answer_b":"847π","answer_c":"846π","answer_d":"850π","answer_correct":"A","mcurl":"annulus.php?r1=143&r2=1405&pl=Calculate"},"140":{"question":"What is the area of an annulus with small radius of 140 and large radius of 144?","answer_a":"1139π","answer_b":"1137π","answer_c":"1136π","answer_d":"1134π","answer_correct":"C","mcurl":"annulus.php?r1=144&r2=1405&pl=Calculate"},"141":{"question":"An annulus has small radius of 143 and large radius of 145. Calculate the area.","answer_a":"575π","answer_b":"574π","answer_c":"573π","answer_d":"576π","answer_correct":"D","mcurl":"annulus.php?r1=145&r2=1435&pl=Calculate"},"142":{"question":"What is the area of an annulus with small radius of 145 and large radius of 146?","answer_a":"292π","answer_b":"293π","answer_c":"291π","answer_d":"294π","answer_correct":"C","mcurl":"annulus.php?r1=146&r2=1455&pl=Calculate"},"143":{"question":"What is the area of an annulus with small radius of 145 and large radius of 147?","answer_a":"585π","answer_b":"587π","answer_c":"584π","answer_d":"586π","answer_correct":"C","mcurl":"annulus.php?r1=147&r2=1455&pl=Calculate"},"144":{"question":"What is the area of an annulus with small radius of 145 and large radius of 148?","answer_a":"880π","answer_b":"881π","answer_c":"879π","answer_d":"882π","answer_correct":"C","mcurl":"annulus.php?r1=148&r2=1455&pl=Calculate"},"145":{"question":"An annulus has small radius of 145 and large radius of 149. Calculate the area.","answer_a":"1176π","answer_b":"1173π","answer_c":"1175π","answer_d":"1178π","answer_correct":"A","mcurl":"annulus.php?r1=149&r2=1455&pl=Calculate"},"146":{"question":"What is the area of an annulus with small radius of 147 and large radius of 150?","answer_a":"890π","answer_b":"888π","answer_c":"889π","answer_d":"891π","answer_correct":"D","mcurl":"annulus.php?r1=150&r2=1475&pl=Calculate"},"147":{"question":"An annulus has small radius of 148 and large radius of 151. Calculate the area.","answer_a":"899π","answer_b":"896π","answer_c":"900π","answer_d":"897π","answer_correct":"D","mcurl":"annulus.php?r1=151&r2=1485&pl=Calculate"},"148":{"question":"An annulus has small radius of 148 and large radius of 152. Calculate the area.","answer_a":"1198π","answer_b":"1201π","answer_c":"1200π","answer_d":"1203π","answer_correct":"C","mcurl":"annulus.php?r1=152&r2=1485&pl=Calculate"},"149":{"question":"An annulus has small radius of 150 and large radius of 153. 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Calculate the area.","answer_a":"1053π","answer_b":"1050π","answer_c":"1051π","answer_d":"1054π","answer_correct":"A","mcurl":"annulus.php?r1=177&r2=1745&pl=Calculate"},"174":{"question":"What is the area of an annulus with small radius of 177 and large radius of 178?","answer_a":"356π","answer_b":"353π","answer_c":"358π","answer_d":"355π","answer_correct":"D","mcurl":"annulus.php?r1=178&r2=1775&pl=Calculate"},"175":{"question":"What is the area of an annulus with small radius of 176 and large radius of 179?","answer_a":"1065π","answer_b":"1064π","answer_c":"1067π","answer_d":"1062π","answer_correct":"A","mcurl":"annulus.php?r1=179&r2=1765&pl=Calculate"},"176":{"question":"What is the area of an annulus with small radius of 176 and large radius of 180?","answer_a":"1423π","answer_b":"1424π","answer_c":"1427π","answer_d":"1426π","answer_correct":"B","mcurl":"annulus.php?r1=180&r2=1765&pl=Calculate"},"177":{"question":"What is the area of an annulus with small radius of 177 and large radius of 181?","answer_a":"1430π","answer_b":"1432π","answer_c":"1433π","answer_d":"1429π","answer_correct":"B","mcurl":"annulus.php?r1=181&r2=1775&pl=Calculate"},"178":{"question":"What is the area of an annulus with small radius of 181 and large radius of 182?","answer_a":"363π","answer_b":"364π","answer_c":"361π","answer_d":"360π","answer_correct":"A","mcurl":"annulus.php?r1=182&r2=1815&pl=Calculate"},"179":{"question":"What is the area of an annulus with small radius of 181 and large radius of 183?","answer_a":"729π","answer_b":"728π","answer_c":"731π","answer_d":"726π","answer_correct":"B","mcurl":"annulus.php?r1=183&r2=1815&pl=Calculate"},"180":{"question":"What is the area of an annulus with small radius of 181 and large radius of 184?","answer_a":"1093π","answer_b":"1094π","answer_c":"1095π","answer_d":"1098π","answer_correct":"C","mcurl":"annulus.php?r1=184&r2=1815&pl=Calculate"},"181":{"question":"An annulus has small radius of 182 and large radius of 185. Calculate the area.","answer_a":"1103π","answer_b":"1100π","answer_c":"1101π","answer_d":"1098π","answer_correct":"C","mcurl":"annulus.php?r1=185&r2=1825&pl=Calculate"},"182":{"question":"What is the area of an annulus with small radius of 184 and large radius of 186?","answer_a":"740π","answer_b":"738π","answer_c":"743π","answer_d":"741π","answer_correct":"A","mcurl":"annulus.php?r1=186&r2=1845&pl=Calculate"},"183":{"question":"What is the area of an annulus with small radius of 186 and large radius of 187?","answer_a":"371π","answer_b":"374π","answer_c":"370π","answer_d":"373π","answer_correct":"D","mcurl":"annulus.php?r1=187&r2=1865&pl=Calculate"},"184":{"question":"What is the area of an annulus with small radius of 185 and large radius of 188?","answer_a":"1121π","answer_b":"1120π","answer_c":"1122π","answer_d":"1119π","answer_correct":"D","mcurl":"annulus.php?r1=188&r2=1855&pl=Calculate"},"185":{"question":"What is the area of an annulus with small radius of 185 and large radius of 189?","answer_a":"1498π","answer_b":"1497π","answer_c":"1496π","answer_d":"1493π","answer_correct":"C","mcurl":"annulus.php?r1=189&r2=1855&pl=Calculate"},"186":{"question":"An annulus has small radius of 188 and large radius of 190. Calculate the area.","answer_a":"755π","answer_b":"756π","answer_c":"753π","answer_d":"758π","answer_correct":"B","mcurl":"annulus.php?r1=190&r2=1885&pl=Calculate"},"187":{"question":"What is the area of an annulus with small radius of 189 and large radius of 191?","answer_a":"762π","answer_b":"760π","answer_c":"757π","answer_d":"759π","answer_correct":"B","mcurl":"annulus.php?r1=191&r2=1895&pl=Calculate"},"188":{"question":"An annulus has small radius of 188 and large radius of 192. Calculate the area.","answer_a":"1523π","answer_b":"1520π","answer_c":"1522π","answer_d":"1521π","answer_correct":"B","mcurl":"annulus.php?r1=192&r2=1885&pl=Calculate"},"189":{"question":"An annulus has small radius of 190 and large radius of 193. Calculate the area.","answer_a":"1148π","answer_b":"1146π","answer_c":"1149π","answer_d":"1147π","answer_correct":"C","mcurl":"annulus.php?r1=193&r2=1905&pl=Calculate"},"190":{"question":"What is the area of an annulus with small radius of 191 and large radius of 194?","answer_a":"1156π","answer_b":"1152π","answer_c":"1155π","answer_d":"1157π","answer_correct":"C","mcurl":"annulus.php?r1=194&r2=1915&pl=Calculate"},"191":{"question":"What is the area of an annulus with small radius of 194 and large radius of 195?","answer_a":"386π","answer_b":"388π","answer_c":"389π","answer_d":"391π","answer_correct":"C","mcurl":"annulus.php?r1=195&r2=1945&pl=Calculate"},"192":{"question":"An annulus has small radius of 192 and large radius of 196. Calculate the area.","answer_a":"1555π","answer_b":"1550π","answer_c":"1552π","answer_d":"1551π","answer_correct":"C","mcurl":"annulus.php?r1=196&r2=1925&pl=Calculate"},"193":{"question":"An annulus has small radius of 196 and large radius of 197. Calculate the area.","answer_a":"391π","answer_b":"392π","answer_c":"393π","answer_d":"396π","answer_correct":"C","mcurl":"annulus.php?r1=197&r2=1965&pl=Calculate"},"194":{"question":"An annulus has small radius of 197 and large radius of 198. Calculate the area.","answer_a":"394π","answer_b":"397π","answer_c":"395π","answer_d":"392π","answer_correct":"C","mcurl":"annulus.php?r1=198&r2=1975&pl=Calculate"},"195":{"question":"An annulus has small radius of 198 and large radius of 199. Calculate the area.","answer_a":"397π","answer_b":"394π","answer_c":"396π","answer_d":"399π","answer_correct":"A","mcurl":"annulus.php?r1=199&r2=1985&pl=Calculate"},"196":{"question":"What is the area of an annulus with small radius of 197 and large radius of 200?","answer_a":"1192π","answer_b":"1191π","answer_c":"1193π","answer_d":"1194π","answer_correct":"B","mcurl":"annulus.php?r1=200&r2=1975&pl=Calculate"},"197":{"question":"What is the area of an annulus with small radius of 200 and large radius of 201?","answer_a":"403π","answer_b":"404π","answer_c":"401π","answer_d":"400π","answer_correct":"C","mcurl":"annulus.php?r1=201&r2=2005&pl=Calculate"},"198":{"question":"An annulus has small radius of 199 and large radius of 202. Calculate the area.","answer_a":"1205π","answer_b":"1206π","answer_c":"1203π","answer_d":"1204π","answer_correct":"C","mcurl":"annulus.php?r1=202&r2=1995&pl=Calculate"},"199":{"question":"An annulus has small radius of 199 and large radius of 203. Calculate the area.","answer_a":"1608π","answer_b":"1606π","answer_c":"1607π","answer_d":"1611π","answer_correct":"A","mcurl":"annulus.php?r1=203&r2=1995&pl=Calculate"},"200":{"question":"What is the area of an annulus with small radius of 200 and large radius of 204?","answer_a":"1613π","answer_b":"1614π","answer_c":"1617π","answer_d":"1616π","answer_correct":"D","mcurl":"annulus.php?r1=204&r2=2005&pl=Calculate"},"201":{"question":"An annulus has small radius of 204 and large radius of 205. Calculate the area.","answer_a":"408π","answer_b":"412π","answer_c":"409π","answer_d":"407π","answer_correct":"C","mcurl":"annulus.php?r1=205&r2=2045&pl=Calculate"},"202":{"question":"What is the area of an annulus with small radius of 205 and large radius of 206?","answer_a":"408π","answer_b":"413π","answer_c":"411π","answer_d":"410π","answer_correct":"C","mcurl":"annulus.php?r1=206&r2=2055&pl=Calculate"},"203":{"question":"An annulus has small radius of 203 and large radius of 207. Calculate the area.","answer_a":"1640π","answer_b":"1639π","answer_c":"1642π","answer_d":"1637π","answer_correct":"A","mcurl":"annulus.php?r1=207&r2=2035&pl=Calculate"},"204":{"question":"An annulus has small radius of 206 and large radius of 208. Calculate the area.","answer_a":"826π","answer_b":"828π","answer_c":"829π","answer_d":"825π","answer_correct":"B","mcurl":"annulus.php?r1=208&r2=2065&pl=Calculate"},"205":{"question":"An annulus has small radius of 206 and large radius of 209. Calculate the area.","answer_a":"1242π","answer_b":"1246π","answer_c":"1245π","answer_d":"1247π","answer_correct":"C","mcurl":"annulus.php?r1=209&r2=2065&pl=Calculate"},"206":{"question":"What is the area of an annulus with small radius of 207 and large radius of 210?","answer_a":"1249π","answer_b":"1248π","answer_c":"1251π","answer_d":"1252π","answer_correct":"C","mcurl":"annulus.php?r1=210&r2=2075&pl=Calculate"},"207":{"question":"What is the area of an annulus with small radius of 210 and large radius of 211?","answer_a":"419π","answer_b":"421π","answer_c":"420π","answer_d":"424π","answer_correct":"B","mcurl":"annulus.php?r1=211&r2=2105&pl=Calculate"},"208":{"question":"An annulus has small radius of 209 and large radius of 212. Calculate the area.","answer_a":"1261π","answer_b":"1263π","answer_c":"1266π","answer_d":"1264π","answer_correct":"B","mcurl":"annulus.php?r1=212&r2=2095&pl=Calculate"},"209":{"question":"What is the area of an annulus with small radius of 209 and large radius of 213?","answer_a":"1687π","answer_b":"1690π","answer_c":"1688π","answer_d":"1691π","answer_correct":"C","mcurl":"annulus.php?r1=213&r2=2095&pl=Calculate"},"210":{"question":"What is the area of an annulus with small radius of 211 and large radius of 214?","answer_a":"1275π","answer_b":"1273π","answer_c":"1274π","answer_d":"1278π","answer_correct":"A","mcurl":"annulus.php?r1=214&r2=2115&pl=Calculate"},"211":{"question":"An annulus has small radius of 214 and large radius of 215. Calculate the area.","answer_a":"429π","answer_b":"427π","answer_c":"428π","answer_d":"432π","answer_correct":"A","mcurl":"annulus.php?r1=215&r2=2145&pl=Calculate"},"212":{"question":"What is the area of an annulus with small radius of 214 and large radius of 216?","answer_a":"860π","answer_b":"863π","answer_c":"861π","answer_d":"862π","answer_correct":"A","mcurl":"annulus.php?r1=216&r2=2145&pl=Calculate"},"213":{"question":"An annulus has small radius of 213 and large radius of 217. Calculate the area.","answer_a":"1718π","answer_b":"1717π","answer_c":"1720π","answer_d":"1719π","answer_correct":"C","mcurl":"annulus.php?r1=217&r2=2135&pl=Calculate"},"214":{"question":"What is the area of an annulus with small radius of 217 and large radius of 218?","answer_a":"436π","answer_b":"433π","answer_c":"435π","answer_d":"432π","answer_correct":"C","mcurl":"annulus.php?r1=218&r2=2175&pl=Calculate"},"215":{"question":"An annulus has small radius of 216 and large radius of 219. Calculate the area.","answer_a":"1304π","answer_b":"1302π","answer_c":"1305π","answer_d":"1303π","answer_correct":"C","mcurl":"annulus.php?r1=219&r2=2165&pl=Calculate"},"216":{"question":"What is the area of an annulus with small radius of 219 and large radius of 220?","answer_a":"441π","answer_b":"439π","answer_c":"436π","answer_d":"440π","answer_correct":"B","mcurl":"annulus.php?r1=220&r2=2195&pl=Calculate"},"217":{"question":"What is the area of an annulus with small radius of 217 and large radius of 221?","answer_a":"1750π","answer_b":"1752π","answer_c":"1751π","answer_d":"1749π","answer_correct":"B","mcurl":"annulus.php?r1=221&r2=2175&pl=Calculate"},"218":{"question":"What is the area of an annulus with small radius of 220 and large radius of 222?","answer_a":"884π","answer_b":"882π","answer_c":"887π","answer_d":"885π","answer_correct":"A","mcurl":"annulus.php?r1=222&r2=2205&pl=Calculate"},"219":{"question":"What is the area of an annulus with small radius of 222 and large radius of 223?","answer_a":"447π","answer_b":"442π","answer_c":"446π","answer_d":"445π","answer_correct":"D","mcurl":"annulus.php?r1=223&r2=2225&pl=Calculate"},"220":{"question":"What is the area of an annulus with small radius of 220 and large radius of 224?","answer_a":"1773π","answer_b":"1777π","answer_c":"1778π","answer_d":"1776π","answer_correct":"D","mcurl":"annulus.php?r1=224&r2=2205&pl=Calculate"},"221":{"question":"An annulus has small radius of 224 and large radius of 225. Calculate the area.","answer_a":"448π","answer_b":"446π","answer_c":"447π","answer_d":"449π","answer_correct":"D","mcurl":"annulus.php?r1=225&r2=2245&pl=Calculate"},"222":{"question":"An annulus has small radius of 225 and large radius of 226. Calculate the area.","answer_a":"451π","answer_b":"450π","answer_c":"448π","answer_d":"453π","answer_correct":"A","mcurl":"annulus.php?r1=226&r2=2255&pl=Calculate"},"223":{"question":"What is the area of an annulus with small radius of 225 and large radius of 227?","answer_a":"907π","answer_b":"905π","answer_c":"904π","answer_d":"906π","answer_correct":"C","mcurl":"annulus.php?r1=227&r2=2255&pl=Calculate"},"224":{"question":"An annulus has small radius of 226 and large radius of 228. Calculate the area.","answer_a":"908π","answer_b":"910π","answer_c":"911π","answer_d":"909π","answer_correct":"A","mcurl":"annulus.php?r1=228&r2=2265&pl=Calculate"},"225":{"question":"What is the area of an annulus with small radius of 227 and large radius of 229?","answer_a":"911π","answer_b":"912π","answer_c":"910π","answer_d":"915π","answer_correct":"B","mcurl":"annulus.php?r1=229&r2=2275&pl=Calculate"},"226":{"question":"What is the area of an annulus with small radius of 226 and large radius of 230?","answer_a":"1822π","answer_b":"1824π","answer_c":"1823π","answer_d":"1827π","answer_correct":"B","mcurl":"annulus.php?r1=230&r2=2265&pl=Calculate"},"227":{"question":"What is the area of an annulus with small radius of 228 and large radius of 231?","answer_a":"1375π","answer_b":"1378π","answer_c":"1377π","answer_d":"1374π","answer_correct":"C","mcurl":"annulus.php?r1=231&r2=2285&pl=Calculate"},"228":{"question":"An annulus has small radius of 229 and large radius of 232. Calculate the area.","answer_a":"1380π","answer_b":"1381π","answer_c":"1382π","answer_d":"1383π","answer_correct":"D","mcurl":"annulus.php?r1=232&r2=2295&pl=Calculate"},"229":{"question":"An annulus has small radius of 231 and large radius of 233. Calculate the area.","answer_a":"931π","answer_b":"927π","answer_c":"928π","answer_d":"930π","answer_correct":"C","mcurl":"annulus.php?r1=233&r2=2315&pl=Calculate"},"230":{"question":"An annulus has small radius of 231 and large radius of 234. Calculate the area.","answer_a":"1396π","answer_b":"1397π","answer_c":"1392π","answer_d":"1395π","answer_correct":"D","mcurl":"annulus.php?r1=234&r2=2315&pl=Calculate"},"231":{"question":"An annulus has small radius of 232 and large radius of 235. Calculate the area.","answer_a":"1402π","answer_b":"1398π","answer_c":"1401π","answer_d":"1399π","answer_correct":"C","mcurl":"annulus.php?r1=235&r2=2325&pl=Calculate"},"232":{"question":"An annulus has small radius of 234 and large radius of 236. Calculate the area.","answer_a":"940π","answer_b":"938π","answer_c":"937π","answer_d":"939π","answer_correct":"A","mcurl":"annulus.php?r1=236&r2=2345&pl=Calculate"},"233":{"question":"What is the area of an annulus with small radius of 234 and large radius of 237?","answer_a":"1412π","answer_b":"1413π","answer_c":"1416π","answer_d":"1411π","answer_correct":"B","mcurl":"annulus.php?r1=237&r2=2345&pl=Calculate"},"234":{"question":"What is the area of an annulus with small radius of 236 and large radius of 238?","answer_a":"947π","answer_b":"946π","answer_c":"951π","answer_d":"948π","answer_correct":"D","mcurl":"annulus.php?r1=238&r2=2365&pl=Calculate"},"235":{"question":"What is the area of an annulus with small radius of 236 and large radius of 239?","answer_a":"1422π","answer_b":"1427π","answer_c":"1426π","answer_d":"1425π","answer_correct":"D","mcurl":"annulus.php?r1=239&r2=2365&pl=Calculate"},"236":{"question":"What is the area of an annulus with small radius of 236 and large radius of 240?","answer_a":"1903π","answer_b":"1901π","answer_c":"1904π","answer_d":"1906π","answer_correct":"C","mcurl":"annulus.php?r1=240&r2=2365&pl=Calculate"},"237":{"question":"An annulus has small radius of 238 and large radius of 241. Calculate the area.","answer_a":"1436π","answer_b":"1439π","answer_c":"1440π","answer_d":"1437π","answer_correct":"D","mcurl":"annulus.php?r1=241&r2=2385&pl=Calculate"},"238":{"question":"What is the area of an annulus with small radius of 240 and large radius of 242?","answer_a":"961π","answer_b":"966π","answer_c":"963π","answer_d":"964π","answer_correct":"D","mcurl":"annulus.php?r1=242&r2=2405&pl=Calculate"},"239":{"question":"What is the area of an annulus with small radius of 242 and large radius of 243?","answer_a":"488π","answer_b":"487π","answer_c":"485π","answer_d":"486π","answer_correct":"C","mcurl":"annulus.php?r1=243&r2=2425&pl=Calculate"},"240":{"question":"An annulus has small radius of 242 and large radius of 244. Calculate the area.","answer_a":"975π","answer_b":"971π","answer_c":"972π","answer_d":"970π","answer_correct":"C","mcurl":"annulus.php?r1=244&r2=2425&pl=Calculate"},"241":{"question":"What is the area of an annulus with small radius of 242 and large radius of 245?","answer_a":"1459π","answer_b":"1458π","answer_c":"1461π","answer_d":"1462π","answer_correct":"C","mcurl":"annulus.php?r1=245&r2=2425&pl=Calculate"},"242":{"question":"An annulus has small radius of 242 and large radius of 246. Calculate the area.","answer_a":"1952π","answer_b":"1953π","answer_c":"1949π","answer_d":"1954π","answer_correct":"A","mcurl":"annulus.php?r1=246&r2=2425&pl=Calculate"},"243":{"question":"An annulus has small radius of 246 and large radius of 247. Calculate the area.","answer_a":"493π","answer_b":"491π","answer_c":"492π","answer_d":"496π","answer_correct":"A","mcurl":"annulus.php?r1=247&r2=2465&pl=Calculate"},"244":{"question":"An annulus has small radius of 247 and large radius of 248. Calculate the area.","answer_a":"493π","answer_b":"495π","answer_c":"494π","answer_d":"498π","answer_correct":"B","mcurl":"annulus.php?r1=248&r2=2475&pl=Calculate"},"245":{"question":"What is the area of an annulus with small radius of 245 and large radius of 249?","answer_a":"1976π","answer_b":"1975π","answer_c":"1979π","answer_d":"1974π","answer_correct":"A","mcurl":"annulus.php?r1=249&r2=2455&pl=Calculate"},"246":{"question":"What is the area of an annulus with small radius of 248 and large radius of 250?","answer_a":"998π","answer_b":"996π","answer_c":"997π","answer_d":"999π","answer_correct":"B","mcurl":"annulus.php?r1=250&r2=2485&pl=Calculate"},"247":{"question":"An annulus has small radius of 250 and large radius of 251. Calculate the area.","answer_a":"502π","answer_b":"504π","answer_c":"501π","answer_d":"503π","answer_correct":"C","mcurl":"annulus.php?r1=251&r2=2505&pl=Calculate"},"248":{"question":"An annulus has small radius of 251 and large radius of 252. Calculate the area.","answer_a":"503π","answer_b":"505π","answer_c":"502π","answer_d":"500π","answer_correct":"A","mcurl":"annulus.php?r1=252&r2=2515&pl=Calculate"},"249":{"question":"What is the area of an annulus with small radius of 250 and large radius of 253?","answer_a":"1512π","answer_b":"1508π","answer_c":"1509π","answer_d":"1511π","answer_correct":"C","mcurl":"annulus.php?r1=253&r2=2505&pl=Calculate"},"250":{"question":"What is the area of an annulus with small radius of 253 and large radius of 254?","answer_a":"508π","answer_b":"509π","answer_c":"504π","answer_d":"507π","answer_correct":"D","mcurl":"annulus.php?r1=254&r2=2535&pl=Calculate"},"251":{"question":"What is the area of an annulus with small radius of 251 and large radius of 255?","answer_a":"2022π","answer_b":"2027π","answer_c":"2024π","answer_d":"2025π","answer_correct":"C","mcurl":"annulus.php?r1=255&r2=2515&pl=Calculate"},"252":{"question":"What is the area of an annulus with small radius of 253 and large radius of 256?","answer_a":"1528π","answer_b":"1525π","answer_c":"1530π","answer_d":"1527π","answer_correct":"D","mcurl":"annulus.php?r1=256&r2=2535&pl=Calculate"},"253":{"question":"An annulus has small radius of 253 and large radius of 257. 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Calculate the area.","answer_a":"1049π","answer_b":"1051π","answer_c":"1050π","answer_d":"1052π","answer_correct":"D","mcurl":"annulus.php?r1=264&r2=2625&pl=Calculate"},"261":{"question":"An annulus has small radius of 263 and large radius of 265. Calculate the area.","answer_a":"1059π","answer_b":"1058π","answer_c":"1057π","answer_d":"1056π","answer_correct":"D","mcurl":"annulus.php?r1=265&r2=2635&pl=Calculate"},"262":{"question":"An annulus has small radius of 265 and large radius of 266. Calculate the area.","answer_a":"531π","answer_b":"534π","answer_c":"530π","answer_d":"529π","answer_correct":"A","mcurl":"annulus.php?r1=266&r2=2655&pl=Calculate"},"263":{"question":"An annulus has small radius of 264 and large radius of 267. Calculate the area.","answer_a":"1593π","answer_b":"1595π","answer_c":"1596π","answer_d":"1592π","answer_correct":"A","mcurl":"annulus.php?r1=267&r2=2645&pl=Calculate"},"264":{"question":"An annulus has small radius of 266 and large radius of 268. Calculate the area.","answer_a":"1068π","answer_b":"1071π","answer_c":"1067π","answer_d":"1066π","answer_correct":"A","mcurl":"annulus.php?r1=268&r2=2665&pl=Calculate"},"265":{"question":"An annulus has small radius of 268 and large radius of 269. Calculate the area.","answer_a":"537π","answer_b":"538π","answer_c":"539π","answer_d":"534π","answer_correct":"A","mcurl":"annulus.php?r1=269&r2=2685&pl=Calculate"},"266":{"question":"What is the area of an annulus with small radius of 267 and large radius of 270?","answer_a":"1608π","answer_b":"1611π","answer_c":"1610π","answer_d":"1609π","answer_correct":"B","mcurl":"annulus.php?r1=270&r2=2675&pl=Calculate"},"267":{"question":"An annulus has small radius of 270 and large radius of 271. Calculate the area.","answer_a":"540π","answer_b":"538π","answer_c":"543π","answer_d":"541π","answer_correct":"D","mcurl":"annulus.php?r1=271&r2=2705&pl=Calculate"},"268":{"question":"What is the area of an annulus with small radius of 269 and large radius of 272?","answer_a":"1626π","answer_b":"1623π","answer_c":"1622π","answer_d":"1621π","answer_correct":"B","mcurl":"annulus.php?r1=272&r2=2695&pl=Calculate"},"269":{"question":"What is the area of an annulus with small radius of 271 and large radius of 273?","answer_a":"1088π","answer_b":"1085π","answer_c":"1089π","answer_d":"1086π","answer_correct":"A","mcurl":"annulus.php?r1=273&r2=2715&pl=Calculate"},"270":{"question":"An annulus has small radius of 273 and large radius of 274. Calculate the area.","answer_a":"550π","answer_b":"549π","answer_c":"547π","answer_d":"546π","answer_correct":"C","mcurl":"annulus.php?r1=274&r2=2735&pl=Calculate"},"271":{"question":"What is the area of an annulus with small radius of 273 and large radius of 275?","answer_a":"1097π","answer_b":"1099π","answer_c":"1098π","answer_d":"1096π","answer_correct":"D","mcurl":"annulus.php?r1=275&r2=2735&pl=Calculate"},"272":{"question":"What is the area of an annulus with small radius of 272 and large radius of 276?","answer_a":"2191π","answer_b":"2195π","answer_c":"2192π","answer_d":"2194π","answer_correct":"C","mcurl":"annulus.php?r1=276&r2=2725&pl=Calculate"},"273":{"question":"What is the area of an annulus with small radius of 273 and large radius of 277?","answer_a":"2200π","answer_b":"2198π","answer_c":"2199π","answer_d":"2197π","answer_correct":"A","mcurl":"annulus.php?r1=277&r2=2735&pl=Calculate"},"274":{"question":"An annulus has small radius of 274 and large radius of 278. Calculate the area.","answer_a":"2205π","answer_b":"2206π","answer_c":"2208π","answer_d":"2209π","answer_correct":"C","mcurl":"annulus.php?r1=278&r2=2745&pl=Calculate"},"275":{"question":"An annulus has small radius of 278 and large radius of 279. Calculate the area.","answer_a":"554π","answer_b":"559π","answer_c":"557π","answer_d":"558π","answer_correct":"C","mcurl":"annulus.php?r1=279&r2=2785&pl=Calculate"},"276":{"question":"What is the area of an annulus with small radius of 278 and large radius of 280?","answer_a":"1116π","answer_b":"1113π","answer_c":"1118π","answer_d":"1115π","answer_correct":"A","mcurl":"annulus.php?r1=280&r2=2785&pl=Calculate"},"277":{"question":"What is the area of an annulus with small radius of 277 and large radius of 281?","answer_a":"2232π","answer_b":"2235π","answer_c":"2233π","answer_d":"2230π","answer_correct":"A","mcurl":"annulus.php?r1=281&r2=2775&pl=Calculate"},"278":{"question":"An annulus has small radius of 278 and large radius of 282. Calculate the area.","answer_a":"2240π","answer_b":"2237π","answer_c":"2238π","answer_d":"2239π","answer_correct":"A","mcurl":"annulus.php?r1=282&r2=2785&pl=Calculate"},"279":{"question":"What is the area of an annulus with small radius of 282 and large radius of 283?","answer_a":"562π","answer_b":"565π","answer_c":"564π","answer_d":"567π","answer_correct":"B","mcurl":"annulus.php?r1=283&r2=2825&pl=Calculate"},"280":{"question":"What is the area of an annulus with small radius of 281 and large radius of 284?","answer_a":"1696π","answer_b":"1698π","answer_c":"1695π","answer_d":"1697π","answer_correct":"C","mcurl":"annulus.php?r1=284&r2=2815&pl=Calculate"},"281":{"question":"An annulus has small radius of 284 and large radius of 285. Calculate the area.","answer_a":"569π","answer_b":"568π","answer_c":"567π","answer_d":"566π","answer_correct":"A","mcurl":"annulus.php?r1=285&r2=2845&pl=Calculate"},"282":{"question":"An annulus has small radius of 283 and large radius of 286. Calculate the area.","answer_a":"1707π","answer_b":"1709π","answer_c":"1708π","answer_d":"1704π","answer_correct":"A","mcurl":"annulus.php?r1=286&r2=2835&pl=Calculate"},"283":{"question":"What is the area of an annulus with small radius of 286 and large radius of 287?","answer_a":"571π","answer_b":"572π","answer_c":"576π","answer_d":"573π","answer_correct":"D","mcurl":"annulus.php?r1=287&r2=2865&pl=Calculate"},"284":{"question":"An annulus has small radius of 284 and large radius of 288. Calculate the area.","answer_a":"2288π","answer_b":"2291π","answer_c":"2290π","answer_d":"2289π","answer_correct":"A","mcurl":"annulus.php?r1=288&r2=2845&pl=Calculate"},"285":{"question":"An annulus has small radius of 288 and large radius of 289. Calculate the area.","answer_a":"576π","answer_b":"577π","answer_c":"579π","answer_d":"574π","answer_correct":"B","mcurl":"annulus.php?r1=289&r2=2885&pl=Calculate"},"286":{"question":"What is the area of an annulus with small radius of 289 and large radius of 290?","answer_a":"580π","answer_b":"577π","answer_c":"579π","answer_d":"576π","answer_correct":"C","mcurl":"annulus.php?r1=290&r2=2895&pl=Calculate"},"287":{"question":"What is the area of an annulus with small radius of 288 and large radius of 291?","answer_a":"1735π","answer_b":"1737π","answer_c":"1738π","answer_d":"1734π","answer_correct":"B","mcurl":"annulus.php?r1=291&r2=2885&pl=Calculate"},"288":{"question":"An annulus has small radius of 290 and large radius of 292. Calculate the area.","answer_a":"1164π","answer_b":"1166π","answer_c":"1167π","answer_d":"1165π","answer_correct":"A","mcurl":"annulus.php?r1=292&r2=2905&pl=Calculate"},"289":{"question":"An annulus has small radius of 289 and large radius of 293. Calculate the area.","answer_a":"2330π","answer_b":"2325π","answer_c":"2328π","answer_d":"2327π","answer_correct":"C","mcurl":"annulus.php?r1=293&r2=2895&pl=Calculate"},"290":{"question":"An annulus has small radius of 292 and large radius of 294. Calculate the area.","answer_a":"1172π","answer_b":"1173π","answer_c":"1170π","answer_d":"1175π","answer_correct":"A","mcurl":"annulus.php?r1=294&r2=2925&pl=Calculate"},"291":{"question":"An annulus has small radius of 294 and large radius of 295. Calculate the area.","answer_a":"592π","answer_b":"587π","answer_c":"589π","answer_d":"588π","answer_correct":"C","mcurl":"annulus.php?r1=295&r2=2945&pl=Calculate"},"292":{"question":"An annulus has small radius of 295 and large radius of 296. Calculate the area.","answer_a":"589π","answer_b":"594π","answer_c":"590π","answer_d":"591π","answer_correct":"D","mcurl":"annulus.php?r1=296&r2=2955&pl=Calculate"},"293":{"question":"What is the area of an annulus with small radius of 295 and large radius of 297?","answer_a":"1181π","answer_b":"1182π","answer_c":"1184π","answer_d":"1183π","answer_correct":"C","mcurl":"annulus.php?r1=297&r2=2955&pl=Calculate"},"294":{"question":"An annulus has small radius of 297 and large radius of 298. Calculate the area.","answer_a":"594π","answer_b":"595π","answer_c":"592π","answer_d":"593π","answer_correct":"B","mcurl":"annulus.php?r1=298&r2=2975&pl=Calculate"},"295":{"question":"What is the area of an annulus with small radius of 297 and large radius of 299?","answer_a":"1194π","answer_b":"1192π","answer_c":"1193π","answer_d":"1195π","answer_correct":"B","mcurl":"annulus.php?r1=299&r2=2975&pl=Calculate"},"296":{"question":"An annulus has small radius of 297 and large radius of 300. Calculate the area.","answer_a":"1791π","answer_b":"1792π","answer_c":"1793π","answer_d":"1788π","answer_correct":"A","mcurl":"annulus.php?r1=300&r2=2975&pl=Calculate"},"297":{"question":"What is the area of an annulus with small radius of 297 and large radius of 301?","answer_a":"2391π","answer_b":"2389π","answer_c":"2394π","answer_d":"2392π","answer_correct":"D","mcurl":"annulus.php?r1=301&r2=2975&pl=Calculate"},"298":{"question":"What is the area of an annulus with small radius of 301 and large radius of 302?","answer_a":"600π","answer_b":"603π","answer_c":"601π","answer_d":"604π","answer_correct":"B","mcurl":"annulus.php?r1=302&r2=3015&pl=Calculate"},"299":{"question":"What is the area of an annulus with small radius of 302 and large radius of 303?","answer_a":"604π","answer_b":"608π","answer_c":"607π","answer_d":"605π","answer_correct":"D","mcurl":"annulus.php?r1=303&r2=3025&pl=Calculate"},"300":{"question":"What is the area of an annulus with small radius of 303 and large radius of 304?","answer_a":"610π","answer_b":"605π","answer_c":"607π","answer_d":"608π","answer_correct":"C","mcurl":"annulus.php?r1=304&r2=3035&pl=Calculate"},"301":{"question":"What is the area of an annulus with small radius of 304 and large radius of 305?","answer_a":"606π","answer_b":"608π","answer_c":"611π","answer_d":"609π","answer_correct":"D","mcurl":"annulus.php?r1=305&r2=3045&pl=Calculate"},"302":{"question":"An annulus has small radius of 302 and large radius of 306. Calculate the area.","answer_a":"2429π","answer_b":"2432π","answer_c":"2434π","answer_d":"2431π","answer_correct":"B","mcurl":"annulus.php?r1=306&r2=3025&pl=Calculate"},"303":{"question":"What is the area of an annulus with small radius of 305 and large radius of 307?","answer_a":"1224π","answer_b":"1221π","answer_c":"1226π","answer_d":"1225π","answer_correct":"A","mcurl":"annulus.php?r1=307&r2=3055&pl=Calculate"},"304":{"question":"What is the area of an annulus with small radius of 307 and large radius of 308?","answer_a":"616π","answer_b":"612π","answer_c":"615π","answer_d":"613π","answer_correct":"C","mcurl":"annulus.php?r1=308&r2=3075&pl=Calculate"},"305":{"question":"What is the area of an annulus with small radius of 305 and large radius of 309?","answer_a":"2459π","answer_b":"2456π","answer_c":"2458π","answer_d":"2457π","answer_correct":"B","mcurl":"annulus.php?r1=309&r2=3055&pl=Calculate"},"306":{"question":"An annulus has small radius of 308 and large radius of 310. 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Calculate the area.","answer_a":"665π","answer_b":"670π","answer_c":"667π","answer_d":"668π","answer_correct":"C","mcurl":"annulus.php?r1=334&r2=3335&pl=Calculate"},"331":{"question":"What is the area of an annulus with small radius of 334 and large radius of 335?","answer_a":"669π","answer_b":"671π","answer_c":"668π","answer_d":"672π","answer_correct":"A","mcurl":"annulus.php?r1=335&r2=3345&pl=Calculate"},"332":{"question":"What is the area of an annulus with small radius of 332 and large radius of 336?","answer_a":"2674π","answer_b":"2671π","answer_c":"2672π","answer_d":"2675π","answer_correct":"C","mcurl":"annulus.php?r1=336&r2=3325&pl=Calculate"},"333":{"question":"An annulus has small radius of 335 and large radius of 337. Calculate the area.","answer_a":"1344π","answer_b":"1346π","answer_c":"1347π","answer_d":"1343π","answer_correct":"A","mcurl":"annulus.php?r1=337&r2=3355&pl=Calculate"},"334":{"question":"An annulus has small radius of 334 and large radius of 338. 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Calculate the area.","answer_a":"2211π","answer_b":"2210π","answer_c":"2208π","answer_d":"2213π","answer_correct":"A","mcurl":"annulus.php?r1=370&r2=3675&pl=Calculate"},"367":{"question":"What is the area of an annulus with small radius of 370 and large radius of 371?","answer_a":"742π","answer_b":"744π","answer_c":"741π","answer_d":"739π","answer_correct":"C","mcurl":"annulus.php?r1=371&r2=3705&pl=Calculate"},"368":{"question":"What is the area of an annulus with small radius of 368 and large radius of 372?","answer_a":"2957π","answer_b":"2958π","answer_c":"2960π","answer_d":"2959π","answer_correct":"C","mcurl":"annulus.php?r1=372&r2=3685&pl=Calculate"},"369":{"question":"An annulus has small radius of 371 and large radius of 373. Calculate the area.","answer_a":"1485π","answer_b":"1489π","answer_c":"1486π","answer_d":"1488π","answer_correct":"D","mcurl":"annulus.php?r1=373&r2=3715&pl=Calculate"},"370":{"question":"What is the area of an annulus with small radius of 370 and large radius of 374?","answer_a":"2977π","answer_b":"2978π","answer_c":"2979π","answer_d":"2976π","answer_correct":"D","mcurl":"annulus.php?r1=374&r2=3705&pl=Calculate"},"371":{"question":"An annulus has small radius of 372 and large radius of 375. Calculate the area.","answer_a":"2239π","answer_b":"2238π","answer_c":"2241π","answer_d":"2242π","answer_correct":"C","mcurl":"annulus.php?r1=375&r2=3725&pl=Calculate"},"372":{"question":"An annulus has small radius of 373 and large radius of 376. Calculate the area.","answer_a":"2244π","answer_b":"2246π","answer_c":"2245π","answer_d":"2247π","answer_correct":"D","mcurl":"annulus.php?r1=376&r2=3735&pl=Calculate"},"373":{"question":"An annulus has small radius of 374 and large radius of 377. Calculate the area.","answer_a":"2256π","answer_b":"2253π","answer_c":"2252π","answer_d":"2255π","answer_correct":"B","mcurl":"annulus.php?r1=377&r2=3745&pl=Calculate"},"374":{"question":"An annulus has small radius of 374 and large radius of 378. Calculate the area.","answer_a":"3009π","answer_b":"3008π","answer_c":"3010π","answer_d":"3005π","answer_correct":"B","mcurl":"annulus.php?r1=378&r2=3745&pl=Calculate"},"375":{"question":"What is the area of an annulus with small radius of 376 and large radius of 379?","answer_a":"2263π","answer_b":"2265π","answer_c":"2268π","answer_d":"2264π","answer_correct":"B","mcurl":"annulus.php?r1=379&r2=3765&pl=Calculate"},"376":{"question":"What is the area of an annulus with small radius of 376 and large radius of 380?","answer_a":"3024π","answer_b":"3027π","answer_c":"3025π","answer_d":"3022π","answer_correct":"A","mcurl":"annulus.php?r1=380&r2=3765&pl=Calculate"},"377":{"question":"An annulus has small radius of 377 and large radius of 381. Calculate the area.","answer_a":"3032π","answer_b":"3031π","answer_c":"3030π","answer_d":"3035π","answer_correct":"A","mcurl":"annulus.php?r1=381&r2=3775&pl=Calculate"},"378":{"question":"An annulus has small radius of 379 and large radius of 382. Calculate the area.","answer_a":"2280π","answer_b":"2283π","answer_c":"2285π","answer_d":"2282π","answer_correct":"B","mcurl":"annulus.php?r1=382&r2=3795&pl=Calculate"},"379":{"question":"What is the area of an annulus with small radius of 379 and large radius of 383?","answer_a":"3051π","answer_b":"3048π","answer_c":"3050π","answer_d":"3049π","answer_correct":"B","mcurl":"annulus.php?r1=383&r2=3795&pl=Calculate"},"380":{"question":"What is the area of an annulus with small radius of 380 and large radius of 384?","answer_a":"3056π","answer_b":"3054π","answer_c":"3057π","answer_d":"3059π","answer_correct":"A","mcurl":"annulus.php?r1=384&r2=3805&pl=Calculate"},"381":{"question":"An annulus has small radius of 381 and large radius of 385. Calculate the area.","answer_a":"3066π","answer_b":"3063π","answer_c":"3064π","answer_d":"3067π","answer_correct":"C","mcurl":"annulus.php?r1=385&r2=3815&pl=Calculate"},"382":{"question":"An annulus has small radius of 382 and large radius of 386. Calculate the area.","answer_a":"3070π","answer_b":"3071π","answer_c":"3075π","answer_d":"3072π","answer_correct":"D","mcurl":"annulus.php?r1=386&r2=3825&pl=Calculate"},"383":{"question":"An annulus has small radius of 384 and large radius of 387. Calculate the area.","answer_a":"2314π","answer_b":"2313π","answer_c":"2311π","answer_d":"2310π","answer_correct":"B","mcurl":"annulus.php?r1=387&r2=3845&pl=Calculate"},"384":{"question":"What is the area of an annulus with small radius of 384 and large radius of 388?","answer_a":"3091π","answer_b":"3088π","answer_c":"3087π","answer_d":"3086π","answer_correct":"B","mcurl":"annulus.php?r1=388&r2=3845&pl=Calculate"},"385":{"question":"What is the area of an annulus with small radius of 388 and large radius of 389?","answer_a":"777π","answer_b":"775π","answer_c":"774π","answer_d":"778π","answer_correct":"A","mcurl":"annulus.php?r1=389&r2=3885&pl=Calculate"},"386":{"question":"An annulus has small radius of 388 and large radius of 390. Calculate the area.","answer_a":"1553π","answer_b":"1556π","answer_c":"1558π","answer_d":"1555π","answer_correct":"B","mcurl":"annulus.php?r1=390&r2=3885&pl=Calculate"},"387":{"question":"An annulus has small radius of 387 and large radius of 391. Calculate the area.","answer_a":"3112π","answer_b":"3111π","answer_c":"3109π","answer_d":"3114π","answer_correct":"A","mcurl":"annulus.php?r1=391&r2=3875&pl=Calculate"},"388":{"question":"What is the area of an annulus with small radius of 390 and large radius of 392?","answer_a":"1563π","answer_b":"1566π","answer_c":"1567π","answer_d":"1564π","answer_correct":"D","mcurl":"annulus.php?r1=392&r2=3905&pl=Calculate"},"389":{"question":"What is the area of an annulus with small radius of 391 and large radius of 393?","answer_a":"1565π","answer_b":"1567π","answer_c":"1566π","answer_d":"1568π","answer_correct":"D","mcurl":"annulus.php?r1=393&r2=3915&pl=Calculate"},"390":{"question":"What is the area of an annulus with small radius of 391 and large radius of 394?","answer_a":"2355π","answer_b":"2357π","answer_c":"2354π","answer_d":"2358π","answer_correct":"A","mcurl":"annulus.php?r1=394&r2=3915&pl=Calculate"},"391":{"question":"What is the area of an annulus with small radius of 391 and large radius of 395?","answer_a":"3141π","answer_b":"3143π","answer_c":"3142π","answer_d":"3144π","answer_correct":"D","mcurl":"annulus.php?r1=395&r2=3915&pl=Calculate"},"392":{"question":"An annulus has small radius of 395 and large radius of 396. Calculate the area.","answer_a":"791π","answer_b":"790π","answer_c":"788π","answer_d":"789π","answer_correct":"A","mcurl":"annulus.php?r1=396&r2=3955&pl=Calculate"},"393":{"question":"An annulus has small radius of 393 and large radius of 397. Calculate the area.","answer_a":"3160π","answer_b":"3157π","answer_c":"3161π","answer_d":"3162π","answer_correct":"A","mcurl":"annulus.php?r1=397&r2=3935&pl=Calculate"},"394":{"question":"An annulus has small radius of 395 and large radius of 398. Calculate the area.","answer_a":"2380π","answer_b":"2376π","answer_c":"2379π","answer_d":"2377π","answer_correct":"C","mcurl":"annulus.php?r1=398&r2=3955&pl=Calculate"},"395":{"question":"An annulus has small radius of 396 and large radius of 399. Calculate the area.","answer_a":"2387π","answer_b":"2382π","answer_c":"2386π","answer_d":"2385π","answer_correct":"D","mcurl":"annulus.php?r1=399&r2=3965&pl=Calculate"},"396":{"question":"What is the area of an annulus with small radius of 396 and large radius of 400?","answer_a":"3185π","answer_b":"3181π","answer_c":"3186π","answer_d":"3184π","answer_correct":"D","mcurl":"annulus.php?r1=400&r2=3965&pl=Calculate"},"397":{"question":"An annulus has small radius of 397 and large radius of 401. Calculate the area.","answer_a":"3192π","answer_b":"3194π","answer_c":"3189π","answer_d":"3191π","answer_correct":"A","mcurl":"annulus.php?r1=401&r2=3975&pl=Calculate"},"398":{"question":"What is the area of an annulus with small radius of 401 and large radius of 402?","answer_a":"802π","answer_b":"806π","answer_c":"801π","answer_d":"803π","answer_correct":"D","mcurl":"annulus.php?r1=402&r2=4015&pl=Calculate"},"399":{"question":"An annulus has small radius of 399 and large radius of 403. Calculate the area.","answer_a":"3209π","answer_b":"3206π","answer_c":"3211π","answer_d":"3208π","answer_correct":"D","mcurl":"annulus.php?r1=403&r2=3995&pl=Calculate"},"400":{"question":"What is the area of an annulus with small radius of 403 and large radius of 404?","answer_a":"805π","answer_b":"810π","answer_c":"806π","answer_d":"807π","answer_correct":"D","mcurl":"annulus.php?r1=404&r2=4035&pl=Calculate"},"401":{"question":"What is the area of an annulus with small radius of 401 and large radius of 405?","answer_a":"3221π","answer_b":"3224π","answer_c":"3223π","answer_d":"3222π","answer_correct":"B","mcurl":"annulus.php?r1=405&r2=4015&pl=Calculate"},"402":{"question":"What is the area of an annulus with small radius of 405 and large radius of 406?","answer_a":"811π","answer_b":"812π","answer_c":"808π","answer_d":"813π","answer_correct":"A","mcurl":"annulus.php?r1=406&r2=4055&pl=Calculate"},"403":{"question":"What is the area of an annulus with small radius of 405 and large radius of 407?","answer_a":"1624π","answer_b":"1627π","answer_c":"1622π","answer_d":"1623π","answer_correct":"A","mcurl":"annulus.php?r1=407&r2=4055&pl=Calculate"},"404":{"question":"An annulus has small radius of 407 and large radius of 408. Calculate the area.","answer_a":"818π","answer_b":"814π","answer_c":"815π","answer_d":"817π","answer_correct":"C","mcurl":"annulus.php?r1=408&r2=4075&pl=Calculate"},"405":{"question":"An annulus has small radius of 405 and large radius of 409. Calculate the area.","answer_a":"3254π","answer_b":"3257π","answer_c":"3256π","answer_d":"3259π","answer_correct":"C","mcurl":"annulus.php?r1=409&r2=4055&pl=Calculate"},"406":{"question":"What is the area of an annulus with small radius of 407 and large radius of 410?","answer_a":"2449π","answer_b":"2448π","answer_c":"2451π","answer_d":"2452π","answer_correct":"C","mcurl":"annulus.php?r1=410&r2=4075&pl=Calculate"},"407":{"question":"What is the area of an annulus with small radius of 408 and large radius of 411?","answer_a":"2457π","answer_b":"2458π","answer_c":"2455π","answer_d":"2460π","answer_correct":"A","mcurl":"annulus.php?r1=411&r2=4085&pl=Calculate"},"408":{"question":"An annulus has small radius of 408 and large radius of 412. Calculate the area.","answer_a":"3281π","answer_b":"3280π","answer_c":"3282π","answer_d":"3277π","answer_correct":"B","mcurl":"annulus.php?r1=412&r2=4085&pl=Calculate"},"409":{"question":"What is the area of an annulus with small radius of 412 and large radius of 413?","answer_a":"824π","answer_b":"827π","answer_c":"828π","answer_d":"825π","answer_correct":"D","mcurl":"annulus.php?r1=413&r2=4125&pl=Calculate"},"410":{"question":"An annulus has small radius of 412 and large radius of 414. Calculate the area.","answer_a":"1651π","answer_b":"1655π","answer_c":"1652π","answer_d":"1650π","answer_correct":"C","mcurl":"annulus.php?r1=414&r2=4125&pl=Calculate"},"411":{"question":"What is the area of an annulus with small radius of 413 and large radius of 415?","answer_a":"1653π","answer_b":"1654π","answer_c":"1657π","answer_d":"1656π","answer_correct":"D","mcurl":"annulus.php?r1=415&r2=4135&pl=Calculate"},"412":{"question":"What is the area of an annulus with small radius of 414 and large radius of 416?","answer_a":"1663π","answer_b":"1659π","answer_c":"1660π","answer_d":"1662π","answer_correct":"C","mcurl":"annulus.php?r1=416&r2=4145&pl=Calculate"},"413":{"question":"An annulus has small radius of 413 and large radius of 417. Calculate the area.","answer_a":"3320π","answer_b":"3322π","answer_c":"3321π","answer_d":"3317π","answer_correct":"A","mcurl":"annulus.php?r1=417&r2=4135&pl=Calculate"},"414":{"question":"What is the area of an annulus with small radius of 415 and large radius of 418?","answer_a":"2497π","answer_b":"2502π","answer_c":"2500π","answer_d":"2499π","answer_correct":"D","mcurl":"annulus.php?r1=418&r2=4155&pl=Calculate"},"415":{"question":"What is the area of an annulus with small radius of 416 and large radius of 419?","answer_a":"2505π","answer_b":"2504π","answer_c":"2507π","answer_d":"2502π","answer_correct":"A","mcurl":"annulus.php?r1=419&r2=4165&pl=Calculate"},"416":{"question":"An annulus has small radius of 419 and large radius of 420. Calculate the area.","answer_a":"839π","answer_b":"836π","answer_c":"841π","answer_d":"840π","answer_correct":"A","mcurl":"annulus.php?r1=420&r2=4195&pl=Calculate"},"417":{"question":"What is the area of an annulus with small radius of 419 and large radius of 421?","answer_a":"1683π","answer_b":"1682π","answer_c":"1680π","answer_d":"1681π","answer_correct":"C","mcurl":"annulus.php?r1=421&r2=4195&pl=Calculate"},"418":{"question":"An annulus has small radius of 419 and large radius of 422. Calculate the area.","answer_a":"2523π","answer_b":"2525π","answer_c":"2526π","answer_d":"2524π","answer_correct":"A","mcurl":"annulus.php?r1=422&r2=4195&pl=Calculate"},"419":{"question":"An annulus has small radius of 421 and large radius of 423. Calculate the area.","answer_a":"1687π","answer_b":"1691π","answer_c":"1686π","answer_d":"1688π","answer_correct":"D","mcurl":"annulus.php?r1=423&r2=4215&pl=Calculate"},"420":{"question":"An annulus has small radius of 420 and large radius of 424. Calculate the area.","answer_a":"3373π","answer_b":"3375π","answer_c":"3378π","answer_d":"3376π","answer_correct":"D","mcurl":"annulus.php?r1=424&r2=4205&pl=Calculate"},"421":{"question":"What is the area of an annulus with small radius of 423 and large radius of 425?","answer_a":"1693π","answer_b":"1695π","answer_c":"1698π","answer_d":"1696π","answer_correct":"D","mcurl":"annulus.php?r1=425&r2=4235&pl=Calculate"},"422":{"question":"What is the area of an annulus with small radius of 422 and large radius of 426?","answer_a":"3392π","answer_b":"3395π","answer_c":"3394π","answer_d":"3393π","answer_correct":"A","mcurl":"annulus.php?r1=426&r2=4225&pl=Calculate"},"423":{"question":"What is the area of an annulus with small radius of 426 and large radius of 427?","answer_a":"850π","answer_b":"854π","answer_c":"853π","answer_d":"851π","answer_correct":"C","mcurl":"annulus.php?r1=427&r2=4265&pl=Calculate"},"424":{"question":"What is the area of an annulus with small radius of 424 and large radius of 428?","answer_a":"3407π","answer_b":"3405π","answer_c":"3406π","answer_d":"3408π","answer_correct":"D","mcurl":"annulus.php?r1=428&r2=4245&pl=Calculate"},"425":{"question":"What is the area of an annulus with small radius of 427 and large radius of 429?","answer_a":"1712π","answer_b":"1715π","answer_c":"1713π","answer_d":"1714π","answer_correct":"A","mcurl":"annulus.php?r1=429&r2=4275&pl=Calculate"},"426":{"question":"An annulus has small radius of 426 and large radius of 430. Calculate the area.","answer_a":"3422π","answer_b":"3424π","answer_c":"3421π","answer_d":"3425π","answer_correct":"B","mcurl":"annulus.php?r1=430&r2=4265&pl=Calculate"},"427":{"question":"An annulus has small radius of 429 and large radius of 431. Calculate the area.","answer_a":"1723π","answer_b":"1720π","answer_c":"1719π","answer_d":"1718π","answer_correct":"B","mcurl":"annulus.php?r1=431&r2=4295&pl=Calculate"},"428":{"question":"What is the area of an annulus with small radius of 430 and large radius of 432?","answer_a":"1722π","answer_b":"1721π","answer_c":"1724π","answer_d":"1725π","answer_correct":"C","mcurl":"annulus.php?r1=432&r2=4305&pl=Calculate"},"429":{"question":"An annulus has small radius of 432 and large radius of 433. Calculate the area.","answer_a":"863π","answer_b":"865π","answer_c":"862π","answer_d":"864π","answer_correct":"B","mcurl":"annulus.php?r1=433&r2=4325&pl=Calculate"},"430":{"question":"What is the area of an annulus with small radius of 431 and large radius of 434?","answer_a":"2596π","answer_b":"2598π","answer_c":"2597π","answer_d":"2595π","answer_correct":"D","mcurl":"annulus.php?r1=434&r2=4315&pl=Calculate"},"431":{"question":"An annulus has small radius of 432 and large radius of 435. Calculate the area.","answer_a":"2602π","answer_b":"2601π","answer_c":"2598π","answer_d":"2603π","answer_correct":"B","mcurl":"annulus.php?r1=435&r2=4325&pl=Calculate"},"432":{"question":"An annulus has small radius of 432 and large radius of 436. Calculate the area.","answer_a":"3469π","answer_b":"3473π","answer_c":"3472π","answer_d":"3474π","answer_correct":"C","mcurl":"annulus.php?r1=436&r2=4325&pl=Calculate"},"433":{"question":"What is the area of an annulus with small radius of 436 and large radius of 437?","answer_a":"875π","answer_b":"873π","answer_c":"872π","answer_d":"870π","answer_correct":"B","mcurl":"annulus.php?r1=437&r2=4365&pl=Calculate"},"434":{"question":"What is the area of an annulus with small radius of 435 and large radius of 438?","answer_a":"2620π","answer_b":"2616π","answer_c":"2621π","answer_d":"2619π","answer_correct":"D","mcurl":"annulus.php?r1=438&r2=4355&pl=Calculate"},"435":{"question":"An annulus has small radius of 435 and large radius of 439. Calculate the area.","answer_a":"3499π","answer_b":"3495π","answer_c":"3496π","answer_d":"3494π","answer_correct":"C","mcurl":"annulus.php?r1=439&r2=4355&pl=Calculate"},"436":{"question":"An annulus has small radius of 437 and large radius of 440. Calculate the area.","answer_a":"2630π","answer_b":"2629π","answer_c":"2631π","answer_d":"2628π","answer_correct":"C","mcurl":"annulus.php?r1=440&r2=4375&pl=Calculate"},"437":{"question":"An annulus has small radius of 438 and large radius of 441. Calculate the area.","answer_a":"2638π","answer_b":"2639π","answer_c":"2640π","answer_d":"2637π","answer_correct":"D","mcurl":"annulus.php?r1=441&r2=4385&pl=Calculate"},"438":{"question":"An annulus has small radius of 441 and large radius of 442. Calculate the area.","answer_a":"884π","answer_b":"883π","answer_c":"881π","answer_d":"886π","answer_correct":"B","mcurl":"annulus.php?r1=442&r2=4415&pl=Calculate"},"439":{"question":"What is the area of an annulus with small radius of 440 and large radius of 443?","answer_a":"2650π","answer_b":"2646π","answer_c":"2649π","answer_d":"2651π","answer_correct":"C","mcurl":"annulus.php?r1=443&r2=4405&pl=Calculate"},"440":{"question":"An annulus has small radius of 441 and large radius of 444. Calculate the area.","answer_a":"2655π","answer_b":"2658π","answer_c":"2653π","answer_d":"2654π","answer_correct":"A","mcurl":"annulus.php?r1=444&r2=4415&pl=Calculate"},"441":{"question":"An annulus has small radius of 444 and large radius of 445. Calculate the area.","answer_a":"891π","answer_b":"889π","answer_c":"890π","answer_d":"886π","answer_correct":"B","mcurl":"annulus.php?r1=445&r2=4445&pl=Calculate"},"442":{"question":"What is the area of an annulus with small radius of 443 and large radius of 446?","answer_a":"2665π","answer_b":"2664π","answer_c":"2668π","answer_d":"2667π","answer_correct":"D","mcurl":"annulus.php?r1=446&r2=4435&pl=Calculate"},"443":{"question":"What is the area of an annulus with small radius of 446 and large radius of 447?","answer_a":"893π","answer_b":"895π","answer_c":"890π","answer_d":"894π","answer_correct":"A","mcurl":"annulus.php?r1=447&r2=4465&pl=Calculate"},"444":{"question":"What is the area of an annulus with small radius of 447 and large radius of 448?","answer_a":"895π","answer_b":"894π","answer_c":"893π","answer_d":"892π","answer_correct":"A","mcurl":"annulus.php?r1=448&r2=4475&pl=Calculate"},"445":{"question":"An annulus has small radius of 446 and large radius of 449. Calculate the area.","answer_a":"2685π","answer_b":"2682π","answer_c":"2683π","answer_d":"2684π","answer_correct":"A","mcurl":"annulus.php?r1=449&r2=4465&pl=Calculate"},"446":{"question":"What is the area of an annulus with small radius of 447 and large radius of 450?","answer_a":"2688π","answer_b":"2691π","answer_c":"2690π","answer_d":"2693π","answer_correct":"B","mcurl":"annulus.php?r1=450&r2=4475&pl=Calculate"},"447":{"question":"An annulus has small radius of 448 and large radius of 451. Calculate the area.","answer_a":"2697π","answer_b":"2694π","answer_c":"2699π","answer_d":"2698π","answer_correct":"A","mcurl":"annulus.php?r1=451&r2=4485&pl=Calculate"},"448":{"question":"What is the area of an annulus with small radius of 449 and large radius of 452?","answer_a":"2705π","answer_b":"2703π","answer_c":"2706π","answer_d":"2702π","answer_correct":"B","mcurl":"annulus.php?r1=452&r2=4495&pl=Calculate"},"449":{"question":"What is the area of an annulus with small radius of 452 and large radius of 453?","answer_a":"905π","answer_b":"903π","answer_c":"906π","answer_d":"908π","answer_correct":"A","mcurl":"annulus.php?r1=453&r2=4525&pl=Calculate"},"450":{"question":"What is the area of an annulus with small radius of 452 and large radius of 454?","answer_a":"1814π","answer_b":"1815π","answer_c":"1812π","answer_d":"1813π","answer_correct":"C","mcurl":"annulus.php?r1=454&r2=4525&pl=Calculate"},"451":{"question":"An annulus has small radius of 452 and large radius of 455. Calculate the area.","answer_a":"2724π","answer_b":"2720π","answer_c":"2719π","answer_d":"2721π","answer_correct":"D","mcurl":"annulus.php?r1=455&r2=4525&pl=Calculate"},"452":{"question":"An annulus has small radius of 452 and large radius of 456. Calculate the area.","answer_a":"3632π","answer_b":"3629π","answer_c":"3633π","answer_d":"3630π","answer_correct":"A","mcurl":"annulus.php?r1=456&r2=4525&pl=Calculate"},"453":{"question":"An annulus has small radius of 455 and large radius of 457. Calculate the area.","answer_a":"1824π","answer_b":"1826π","answer_c":"1823π","answer_d":"1821π","answer_correct":"A","mcurl":"annulus.php?r1=457&r2=4555&pl=Calculate"},"454":{"question":"An annulus has small radius of 454 and large radius of 458. Calculate the area.","answer_a":"3648π","answer_b":"3650π","answer_c":"3651π","answer_d":"3647π","answer_correct":"A","mcurl":"annulus.php?r1=458&r2=4545&pl=Calculate"},"455":{"question":"What is the area of an annulus with small radius of 458 and large radius of 459?","answer_a":"920π","answer_b":"916π","answer_c":"919π","answer_d":"917π","answer_correct":"D","mcurl":"annulus.php?r1=459&r2=4585&pl=Calculate"},"456":{"question":"An annulus has small radius of 458 and large radius of 460. Calculate the area.","answer_a":"1838π","answer_b":"1837π","answer_c":"1833π","answer_d":"1836π","answer_correct":"D","mcurl":"annulus.php?r1=460&r2=4585&pl=Calculate"},"457":{"question":"An annulus has small radius of 458 and large radius of 461. Calculate the area.","answer_a":"2760π","answer_b":"2758π","answer_c":"2759π","answer_d":"2757π","answer_correct":"D","mcurl":"annulus.php?r1=461&r2=4585&pl=Calculate"},"458":{"question":"An annulus has small radius of 461 and large radius of 462. Calculate the area.","answer_a":"923π","answer_b":"925π","answer_c":"926π","answer_d":"922π","answer_correct":"A","mcurl":"annulus.php?r1=462&r2=4615&pl=Calculate"},"459":{"question":"What is the area of an annulus with small radius of 462 and large radius of 463?","answer_a":"928π","answer_b":"927π","answer_c":"925π","answer_d":"924π","answer_correct":"C","mcurl":"annulus.php?r1=463&r2=4625&pl=Calculate"},"460":{"question":"An annulus has small radius of 461 and large radius of 464. Calculate the area.","answer_a":"2777π","answer_b":"2776π","answer_c":"2775π","answer_d":"2772π","answer_correct":"C","mcurl":"annulus.php?r1=464&r2=4615&pl=Calculate"},"461":{"question":"An annulus has small radius of 463 and large radius of 465. Calculate the area.","answer_a":"1854π","answer_b":"1857π","answer_c":"1856π","answer_d":"1853π","answer_correct":"C","mcurl":"annulus.php?r1=465&r2=4635&pl=Calculate"},"462":{"question":"What is the area of an annulus with small radius of 465 and large radius of 466?","answer_a":"932π","answer_b":"934π","answer_c":"929π","answer_d":"931π","answer_correct":"D","mcurl":"annulus.php?r1=466&r2=4655&pl=Calculate"},"463":{"question":"An annulus has small radius of 464 and large radius of 467. Calculate the area.","answer_a":"2791π","answer_b":"2793π","answer_c":"2796π","answer_d":"2792π","answer_correct":"B","mcurl":"annulus.php?r1=467&r2=4645&pl=Calculate"},"464":{"question":"An annulus has small radius of 465 and large radius of 468. Calculate the area.","answer_a":"2801π","answer_b":"2798π","answer_c":"2799π","answer_d":"2802π","answer_correct":"C","mcurl":"annulus.php?r1=468&r2=4655&pl=Calculate"},"465":{"question":"What is the area of an annulus with small radius of 467 and large radius of 469?","answer_a":"1875π","answer_b":"1873π","answer_c":"1870π","answer_d":"1872π","answer_correct":"D","mcurl":"annulus.php?r1=469&r2=4675&pl=Calculate"},"466":{"question":"An annulus has small radius of 467 and large radius of 470. Calculate the area.","answer_a":"2814π","answer_b":"2810π","answer_c":"2809π","answer_d":"2811π","answer_correct":"D","mcurl":"annulus.php?r1=470&r2=4675&pl=Calculate"},"467":{"question":"What is the area of an annulus with small radius of 470 and large radius of 471?","answer_a":"938π","answer_b":"941π","answer_c":"940π","answer_d":"943π","answer_correct":"B","mcurl":"annulus.php?r1=471&r2=4705&pl=Calculate"},"468":{"question":"An annulus has small radius of 469 and large radius of 472. Calculate the area.","answer_a":"2825π","answer_b":"2823π","answer_c":"2824π","answer_d":"2820π","answer_correct":"B","mcurl":"annulus.php?r1=472&r2=4695&pl=Calculate"},"469":{"question":"An annulus has small radius of 471 and large radius of 473. Calculate the area.","answer_a":"1889π","answer_b":"1891π","answer_c":"1886π","answer_d":"1888π","answer_correct":"D","mcurl":"annulus.php?r1=473&r2=4715&pl=Calculate"},"470":{"question":"What is the area of an annulus with small radius of 472 and large radius of 474?","answer_a":"1892π","answer_b":"1891π","answer_c":"1889π","answer_d":"1894π","answer_correct":"A","mcurl":"annulus.php?r1=474&r2=4725&pl=Calculate"},"471":{"question":"An annulus has small radius of 471 and large radius of 475. Calculate the area.","answer_a":"3784π","answer_b":"3781π","answer_c":"3783π","answer_d":"3782π","answer_correct":"A","mcurl":"annulus.php?r1=475&r2=4715&pl=Calculate"},"472":{"question":"What is the area of an annulus with small radius of 474 and large radius of 476?","answer_a":"1897π","answer_b":"1898π","answer_c":"1900π","answer_d":"1899π","answer_correct":"C","mcurl":"annulus.php?r1=476&r2=4745&pl=Calculate"},"473":{"question":"An annulus has small radius of 476 and large radius of 477. Calculate the area.","answer_a":"954π","answer_b":"953π","answer_c":"951π","answer_d":"956π","answer_correct":"B","mcurl":"annulus.php?r1=477&r2=4765&pl=Calculate"},"474":{"question":"What is the area of an annulus with small radius of 477 and large radius of 478?","answer_a":"955π","answer_b":"956π","answer_c":"958π","answer_d":"953π","answer_correct":"A","mcurl":"annulus.php?r1=478&r2=4775&pl=Calculate"},"475":{"question":"What is the area of an annulus with small radius of 478 and large radius of 479?","answer_a":"957π","answer_b":"955π","answer_c":"956π","answer_d":"954π","answer_correct":"A","mcurl":"annulus.php?r1=479&r2=4785&pl=Calculate"},"476":{"question":"An annulus has small radius of 478 and large radius of 480. Calculate the area.","answer_a":"1915π","answer_b":"1918π","answer_c":"1916π","answer_d":"1913π","answer_correct":"C","mcurl":"annulus.php?r1=480&r2=4785&pl=Calculate"},"477":{"question":"An annulus has small radius of 477 and large radius of 481. Calculate the area.","answer_a":"3832π","answer_b":"3834π","answer_c":"3833π","answer_d":"3829π","answer_correct":"A","mcurl":"annulus.php?r1=481&r2=4775&pl=Calculate"},"478":{"question":"An annulus has small radius of 481 and large radius of 482. Calculate the area.","answer_a":"961π","answer_b":"963π","answer_c":"966π","answer_d":"962π","answer_correct":"B","mcurl":"annulus.php?r1=482&r2=4815&pl=Calculate"},"479":{"question":"An annulus has small radius of 480 and large radius of 483. Calculate the area.","answer_a":"2889π","answer_b":"2890π","answer_c":"2891π","answer_d":"2892π","answer_correct":"A","mcurl":"annulus.php?r1=483&r2=4805&pl=Calculate"},"480":{"question":"What is the area of an annulus with small radius of 482 and large radius of 484?","answer_a":"1932π","answer_b":"1929π","answer_c":"1930π","answer_d":"1933π","answer_correct":"A","mcurl":"annulus.php?r1=484&r2=4825&pl=Calculate"},"481":{"question":"An annulus has small radius of 484 and large radius of 485. Calculate the area.","answer_a":"969π","answer_b":"972π","answer_c":"970π","answer_d":"971π","answer_correct":"A","mcurl":"annulus.php?r1=485&r2=4845&pl=Calculate"},"482":{"question":"An annulus has small radius of 484 and large radius of 486. Calculate the area.","answer_a":"1939π","answer_b":"1938π","answer_c":"1937π","answer_d":"1940π","answer_correct":"D","mcurl":"annulus.php?r1=486&r2=4845&pl=Calculate"},"483":{"question":"An annulus has small radius of 485 and large radius of 487. Calculate the area.","answer_a":"1942π","answer_b":"1944π","answer_c":"1943π","answer_d":"1947π","answer_correct":"B","mcurl":"annulus.php?r1=487&r2=4855&pl=Calculate"},"484":{"question":"What is the area of an annulus with small radius of 487 and large radius of 488?","answer_a":"974π","answer_b":"975π","answer_c":"978π","answer_d":"973π","answer_correct":"B","mcurl":"annulus.php?r1=488&r2=4875&pl=Calculate"},"485":{"question":"An annulus has small radius of 486 and large radius of 489. Calculate the area.","answer_a":"2925π","answer_b":"2923π","answer_c":"2926π","answer_d":"2928π","answer_correct":"A","mcurl":"annulus.php?r1=489&r2=4865&pl=Calculate"},"486":{"question":"What is the area of an annulus with small radius of 488 and large radius of 490?","answer_a":"1958π","answer_b":"1956π","answer_c":"1955π","answer_d":"1953π","answer_correct":"B","mcurl":"annulus.php?r1=490&r2=4885&pl=Calculate"},"487":{"question":"An annulus has small radius of 490 and large radius of 491. Calculate the area.","answer_a":"979π","answer_b":"984π","answer_c":"981π","answer_d":"982π","answer_correct":"C","mcurl":"annulus.php?r1=491&r2=4905&pl=Calculate"},"488":{"question":"An annulus has small radius of 489 and large radius of 492. Calculate the area.","answer_a":"2943π","answer_b":"2944π","answer_c":"2941π","answer_d":"2940π","answer_correct":"A","mcurl":"annulus.php?r1=492&r2=4895&pl=Calculate"},"489":{"question":"What is the area of an annulus with small radius of 491 and large radius of 493?","answer_a":"1971π","answer_b":"1968π","answer_c":"1970π","answer_d":"1967π","answer_correct":"B","mcurl":"annulus.php?r1=493&r2=4915&pl=Calculate"},"490":{"question":"What is the area of an annulus with small radius of 491 and large radius of 494?","answer_a":"2955π","answer_b":"2952π","answer_c":"2953π","answer_d":"2954π","answer_correct":"A","mcurl":"annulus.php?r1=494&r2=4915&pl=Calculate"},"491":{"question":"An annulus has small radius of 492 and large radius of 495. Calculate the area.","answer_a":"2964π","answer_b":"2963π","answer_c":"2961π","answer_d":"2960π","answer_correct":"C","mcurl":"annulus.php?r1=495&r2=4925&pl=Calculate"},"492":{"question":"What is the area of an annulus with small radius of 494 and large radius of 496?","answer_a":"1980π","answer_b":"1978π","answer_c":"1977π","answer_d":"1981π","answer_correct":"A","mcurl":"annulus.php?r1=496&r2=4945&pl=Calculate"},"493":{"question":"An annulus has small radius of 493 and large radius of 497. Calculate the area.","answer_a":"3960π","answer_b":"3961π","answer_c":"3958π","answer_d":"3963π","answer_correct":"A","mcurl":"annulus.php?r1=497&r2=4935&pl=Calculate"},"494":{"question":"What is the area of an annulus with small radius of 497 and large radius of 498?","answer_a":"992π","answer_b":"996π","answer_c":"995π","answer_d":"993π","answer_correct":"C","mcurl":"annulus.php?r1=498&r2=4975&pl=Calculate"},"495":{"question":"What is the area of an annulus with small radius of 498 and large radius of 499?","answer_a":"996π","answer_b":"997π","answer_c":"994π","answer_d":"999π","answer_correct":"B","mcurl":"annulus.php?r1=499&r2=4985&pl=Calculate"},"496":{"question":"What is the area of an annulus with small radius of 497 and large radius of 500?","answer_a":"2989π","answer_b":"2991π","answer_c":"2994π","answer_d":"2990π","answer_correct":"B","mcurl":"annulus.php?r1=500&r2=4975&pl=Calculate"},"497":{"question":"An annulus has small radius of 500 and large radius of 501. Calculate the area.","answer_a":"1001π","answer_b":"1002π","answer_c":"1004π","answer_d":"1003π","answer_correct":"A","mcurl":"annulus.php?r1=501&r2=5005&pl=Calculate"},"498":{"question":"An annulus has small radius of 499 and large radius of 502. Calculate the area.","answer_a":"3001π","answer_b":"3002π","answer_c":"3006π","answer_d":"3003π","answer_correct":"D","mcurl":"annulus.php?r1=502&r2=4995&pl=Calculate"},"499":{"question":"An annulus has small radius of 500 and large radius of 503. Calculate the area.","answer_a":"3008π","answer_b":"3009π","answer_c":"3006π","answer_d":"3007π","answer_correct":"B","mcurl":"annulus.php?r1=503&r2=5005&pl=Calculate"},"500":{"question":"An annulus has small radius of 501 and large radius of 504. Calculate the area.","answer_a":"3017π","answer_b":"3012π","answer_c":"3015π","answer_d":"3016π","answer_correct":"C","mcurl":"annulus.php?r1=504&r2=5015&pl=Calculate"},"501":{"question":"An annulus has small radius of 502 and large radius of 505. Calculate the area.","answer_a":"3024π","answer_b":"3023π","answer_c":"3020π","answer_d":"3021π","answer_correct":"D","mcurl":"annulus.php?r1=505&r2=5025&pl=Calculate"},"502":{"question":"An annulus has small radius of 505 and large radius of 506. 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Calculate the area.","answer_a":"4064π","answer_b":"4066π","answer_c":"4061π","answer_d":"4065π","answer_correct":"A","mcurl":"annulus.php?r1=510&r2=5065&pl=Calculate"},"507":{"question":"What is the area of an annulus with small radius of 509 and large radius of 511?","answer_a":"2038π","answer_b":"2037π","answer_c":"2039π","answer_d":"2040π","answer_correct":"D","mcurl":"annulus.php?r1=511&r2=5095&pl=Calculate"},"508":{"question":"An annulus has small radius of 511 and large radius of 512. Calculate the area.","answer_a":"1024π","answer_b":"1020π","answer_c":"1023π","answer_d":"1021π","answer_correct":"C","mcurl":"annulus.php?r1=512&r2=5115&pl=Calculate"},"509":{"question":"What is the area of an annulus with small radius of 510 and large radius of 513?","answer_a":"3071π","answer_b":"3068π","answer_c":"3069π","answer_d":"3066π","answer_correct":"C","mcurl":"annulus.php?r1=513&r2=5105&pl=Calculate"},"510":{"question":"An annulus has small radius of 512 and large radius of 514. Calculate the area.","answer_a":"2053π","answer_b":"2052π","answer_c":"2050π","answer_d":"2055π","answer_correct":"B","mcurl":"annulus.php?r1=514&r2=5125&pl=Calculate"},"511":{"question":"An annulus has small radius of 512 and large radius of 515. Calculate the area.","answer_a":"3081π","answer_b":"3083π","answer_c":"3084π","answer_d":"3080π","answer_correct":"A","mcurl":"annulus.php?r1=515&r2=5125&pl=Calculate"},"512":{"question":"What is the area of an annulus with small radius of 515 and large radius of 516?","answer_a":"1031π","answer_b":"1028π","answer_c":"1033π","answer_d":"1032π","answer_correct":"A","mcurl":"annulus.php?r1=516&r2=5155&pl=Calculate"},"513":{"question":"An annulus has small radius of 515 and large radius of 517. Calculate the area.","answer_a":"2066π","answer_b":"2064π","answer_c":"2063π","answer_d":"2067π","answer_correct":"B","mcurl":"annulus.php?r1=517&r2=5155&pl=Calculate"},"514":{"question":"An annulus has small radius of 516 and large radius of 518. Calculate the area.","answer_a":"2071π","answer_b":"2068π","answer_c":"2066π","answer_d":"2069π","answer_correct":"B","mcurl":"annulus.php?r1=518&r2=5165&pl=Calculate"},"515":{"question":"An annulus has small radius of 515 and large radius of 519. Calculate the area.","answer_a":"4136π","answer_b":"4134π","answer_c":"4133π","answer_d":"4135π","answer_correct":"A","mcurl":"annulus.php?r1=519&r2=5155&pl=Calculate"},"516":{"question":"What is the area of an annulus with small radius of 518 and large radius of 520?","answer_a":"2078π","answer_b":"2075π","answer_c":"2076π","answer_d":"2079π","answer_correct":"C","mcurl":"annulus.php?r1=520&r2=5185&pl=Calculate"},"517":{"question":"What is the area of an annulus with small radius of 519 and large radius of 521?","answer_a":"2081π","answer_b":"2078π","answer_c":"2080π","answer_d":"2083π","answer_correct":"C","mcurl":"annulus.php?r1=521&r2=5195&pl=Calculate"},"518":{"question":"What is the area of an annulus with small radius of 518 and large radius of 522?","answer_a":"4160π","answer_b":"4162π","answer_c":"4159π","answer_d":"4157π","answer_correct":"A","mcurl":"annulus.php?r1=522&r2=5185&pl=Calculate"},"519":{"question":"An annulus has small radius of 522 and large radius of 523. Calculate the area.","answer_a":"1045π","answer_b":"1044π","answer_c":"1048π","answer_d":"1043π","answer_correct":"A","mcurl":"annulus.php?r1=523&r2=5225&pl=Calculate"},"520":{"question":"What is the area of an annulus with small radius of 522 and large radius of 524?","answer_a":"2089π","answer_b":"2090π","answer_c":"2092π","answer_d":"2093π","answer_correct":"C","mcurl":"annulus.php?r1=524&r2=5225&pl=Calculate"},"521":{"question":"What is the area of an annulus with small radius of 522 and large radius of 525?","answer_a":"3141π","answer_b":"3144π","answer_c":"3142π","answer_d":"3139π","answer_correct":"A","mcurl":"annulus.php?r1=525&r2=5225&pl=Calculate"},"522":{"question":"An annulus has small radius of 523 and large radius of 526. Calculate the area.","answer_a":"3146π","answer_b":"3150π","answer_c":"3149π","answer_d":"3147π","answer_correct":"D","mcurl":"annulus.php?r1=526&r2=5235&pl=Calculate"},"523":{"question":"What is the area of an annulus with small radius of 526 and large radius of 527?","answer_a":"1050π","answer_b":"1053π","answer_c":"1054π","answer_d":"1051π","answer_correct":"B","mcurl":"annulus.php?r1=527&r2=5265&pl=Calculate"},"524":{"question":"What is the area of an annulus with small radius of 525 and large radius of 528?","answer_a":"3162π","answer_b":"3160π","answer_c":"3161π","answer_d":"3159π","answer_correct":"D","mcurl":"annulus.php?r1=528&r2=5255&pl=Calculate"},"525":{"question":"An annulus has small radius of 525 and large radius of 529. Calculate the area.","answer_a":"4216π","answer_b":"4218π","answer_c":"4217π","answer_d":"4219π","answer_correct":"A","mcurl":"annulus.php?r1=529&r2=5255&pl=Calculate"},"526":{"question":"What is the area of an annulus with small radius of 527 and large radius of 530?","answer_a":"3173π","answer_b":"3174π","answer_c":"3170π","answer_d":"3171π","answer_correct":"D","mcurl":"annulus.php?r1=530&r2=5275&pl=Calculate"},"527":{"question":"What is the area of an annulus with small radius of 530 and large radius of 531?","answer_a":"1061π","answer_b":"1060π","answer_c":"1059π","answer_d":"1064π","answer_correct":"A","mcurl":"annulus.php?r1=531&r2=5305&pl=Calculate"},"528":{"question":"What is the area of an annulus with small radius of 529 and large radius of 532?","answer_a":"3181π","answer_b":"3180π","answer_c":"3182π","answer_d":"3183π","answer_correct":"D","mcurl":"annulus.php?r1=532&r2=5295&pl=Calculate"},"529":{"question":"An annulus has small radius of 531 and large radius of 533. Calculate the area.","answer_a":"2131π","answer_b":"2128π","answer_c":"2130π","answer_d":"2129π","answer_correct":"B","mcurl":"annulus.php?r1=533&r2=5315&pl=Calculate"},"530":{"question":"What is the area of an annulus with small radius of 530 and large radius of 534?","answer_a":"4258π","answer_b":"4255π","answer_c":"4256π","answer_d":"4253π","answer_correct":"C","mcurl":"annulus.php?r1=534&r2=5305&pl=Calculate"},"531":{"question":"An annulus has small radius of 534 and large radius of 535. Calculate the area.","answer_a":"1067π","answer_b":"1070π","answer_c":"1066π","answer_d":"1069π","answer_correct":"D","mcurl":"annulus.php?r1=535&r2=5345&pl=Calculate"},"532":{"question":"What is the area of an annulus with small radius of 534 and large radius of 536?","answer_a":"2140π","answer_b":"2142π","answer_c":"2143π","answer_d":"2139π","answer_correct":"A","mcurl":"annulus.php?r1=536&r2=5345&pl=Calculate"},"533":{"question":"An annulus has small radius of 536 and large radius of 537. Calculate the area.","answer_a":"1070π","answer_b":"1074π","answer_c":"1073π","answer_d":"1075π","answer_correct":"C","mcurl":"annulus.php?r1=537&r2=5365&pl=Calculate"},"534":{"question":"An annulus has small radius of 535 and large radius of 538. Calculate the area.","answer_a":"3219π","answer_b":"3217π","answer_c":"3220π","answer_d":"3222π","answer_correct":"A","mcurl":"annulus.php?r1=538&r2=5355&pl=Calculate"},"535":{"question":"An annulus has small radius of 538 and large radius of 539. Calculate the area.","answer_a":"1077π","answer_b":"1075π","answer_c":"1080π","answer_d":"1076π","answer_correct":"A","mcurl":"annulus.php?r1=539&r2=5385&pl=Calculate"},"536":{"question":"An annulus has small radius of 538 and large radius of 540. Calculate the area.","answer_a":"2158π","answer_b":"2153π","answer_c":"2157π","answer_d":"2156π","answer_correct":"D","mcurl":"annulus.php?r1=540&r2=5385&pl=Calculate"},"537":{"question":"An annulus has small radius of 539 and large radius of 541. Calculate the area.","answer_a":"2159π","answer_b":"2160π","answer_c":"2157π","answer_d":"2158π","answer_correct":"B","mcurl":"annulus.php?r1=541&r2=5395&pl=Calculate"},"538":{"question":"An annulus has small radius of 541 and large radius of 542. Calculate the area.","answer_a":"1082π","answer_b":"1080π","answer_c":"1081π","answer_d":"1083π","answer_correct":"D","mcurl":"annulus.php?r1=542&r2=5415&pl=Calculate"},"539":{"question":"What is the area of an annulus with small radius of 542 and large radius of 543?","answer_a":"1082π","answer_b":"1085π","answer_c":"1087π","answer_d":"1086π","answer_correct":"B","mcurl":"annulus.php?r1=543&r2=5425&pl=Calculate"},"540":{"question":"An annulus has small radius of 542 and large radius of 544. Calculate the area.","answer_a":"2172π","answer_b":"2169π","answer_c":"2173π","answer_d":"2174π","answer_correct":"A","mcurl":"annulus.php?r1=544&r2=5425&pl=Calculate"},"541":{"question":"What is the area of an annulus with small radius of 542 and large radius of 545?","answer_a":"3262π","answer_b":"3263π","answer_c":"3261π","answer_d":"3264π","answer_correct":"C","mcurl":"annulus.php?r1=545&r2=5425&pl=Calculate"},"542":{"question":"What is the area of an annulus with small radius of 542 and large radius of 546?","answer_a":"4349π","answer_b":"4354π","answer_c":"4353π","answer_d":"4352π","answer_correct":"D","mcurl":"annulus.php?r1=546&r2=5425&pl=Calculate"},"543":{"question":"What is the area of an annulus with small radius of 545 and large radius of 547?","answer_a":"2187π","answer_b":"2182π","answer_c":"2183π","answer_d":"2184π","answer_correct":"D","mcurl":"annulus.php?r1=547&r2=5455&pl=Calculate"},"544":{"question":"What is the area of an annulus with small radius of 547 and large radius of 548?","answer_a":"1095π","answer_b":"1093π","answer_c":"1094π","answer_d":"1092π","answer_correct":"A","mcurl":"annulus.php?r1=548&r2=5475&pl=Calculate"},"545":{"question":"What is the area of an annulus with small radius of 547 and large radius of 549?","answer_a":"2193π","answer_b":"2192π","answer_c":"2194π","answer_d":"2195π","answer_correct":"B","mcurl":"annulus.php?r1=549&r2=5475&pl=Calculate"},"546":{"question":"An annulus has small radius of 548 and large radius of 550. Calculate the area.","answer_a":"2193π","answer_b":"2195π","answer_c":"2196π","answer_d":"2198π","answer_correct":"C","mcurl":"annulus.php?r1=550&r2=5485&pl=Calculate"},"547":{"question":"An annulus has small radius of 549 and large radius of 551. Calculate the area.","answer_a":"2203π","answer_b":"2201π","answer_c":"2200π","answer_d":"2202π","answer_correct":"C","mcurl":"annulus.php?r1=551&r2=5495&pl=Calculate"},"548":{"question":"An annulus has small radius of 549 and large radius of 552. Calculate the area.","answer_a":"3303π","answer_b":"3301π","answer_c":"3304π","answer_d":"3300π","answer_correct":"A","mcurl":"annulus.php?r1=552&r2=5495&pl=Calculate"},"549":{"question":"An annulus has small radius of 549 and large radius of 553. Calculate the area.","answer_a":"4405π","answer_b":"4409π","answer_c":"4410π","answer_d":"4408π","answer_correct":"D","mcurl":"annulus.php?r1=553&r2=5495&pl=Calculate"},"550":{"question":"What is the area of an annulus with small radius of 552 and large radius of 554?","answer_a":"2213π","answer_b":"2214π","answer_c":"2209π","answer_d":"2212π","answer_correct":"D","mcurl":"annulus.php?r1=554&r2=5525&pl=Calculate"},"551":{"question":"An annulus has small radius of 554 and large radius of 555. Calculate the area.","answer_a":"1111π","answer_b":"1108π","answer_c":"1112π","answer_d":"1109π","answer_correct":"D","mcurl":"annulus.php?r1=555&r2=5545&pl=Calculate"},"552":{"question":"An annulus has small radius of 553 and large radius of 556. Calculate the area.","answer_a":"3327π","answer_b":"3324π","answer_c":"3328π","answer_d":"3325π","answer_correct":"A","mcurl":"annulus.php?r1=556&r2=5535&pl=Calculate"},"553":{"question":"An annulus has small radius of 553 and large radius of 557. Calculate the area.","answer_a":"4443π","answer_b":"4439π","answer_c":"4442π","answer_d":"4440π","answer_correct":"D","mcurl":"annulus.php?r1=557&r2=5535&pl=Calculate"},"554":{"question":"An annulus has small radius of 554 and large radius of 558. Calculate the area.","answer_a":"4445π","answer_b":"4447π","answer_c":"4448π","answer_d":"4450π","answer_correct":"C","mcurl":"annulus.php?r1=558&r2=5545&pl=Calculate"},"555":{"question":"An annulus has small radius of 556 and large radius of 559. Calculate the area.","answer_a":"3343π","answer_b":"3345π","answer_c":"3344π","answer_d":"3342π","answer_correct":"B","mcurl":"annulus.php?r1=559&r2=5565&pl=Calculate"},"556":{"question":"What is the area of an annulus with small radius of 557 and large radius of 560?","answer_a":"3352π","answer_b":"3351π","answer_c":"3349π","answer_d":"3354π","answer_correct":"B","mcurl":"annulus.php?r1=560&r2=5575&pl=Calculate"},"557":{"question":"What is the area of an annulus with small radius of 559 and large radius of 561?","answer_a":"2239π","answer_b":"2240π","answer_c":"2243π","answer_d":"2238π","answer_correct":"B","mcurl":"annulus.php?r1=561&r2=5595&pl=Calculate"},"558":{"question":"What is the area of an annulus with small radius of 560 and large radius of 562?","answer_a":"2246π","answer_b":"2245π","answer_c":"2241π","answer_d":"2244π","answer_correct":"D","mcurl":"annulus.php?r1=562&r2=5605&pl=Calculate"},"559":{"question":"What is the area of an annulus with small radius of 559 and large radius of 563?","answer_a":"4488π","answer_b":"4491π","answer_c":"4490π","answer_d":"4487π","answer_correct":"A","mcurl":"annulus.php?r1=563&r2=5595&pl=Calculate"},"560":{"question":"An annulus has small radius of 560 and large radius of 564. Calculate the area.","answer_a":"4499π","answer_b":"4498π","answer_c":"4496π","answer_d":"4497π","answer_correct":"C","mcurl":"annulus.php?r1=564&r2=5605&pl=Calculate"},"561":{"question":"What is the area of an annulus with small radius of 561 and large radius of 565?","answer_a":"4503π","answer_b":"4501π","answer_c":"4502π","answer_d":"4504π","answer_correct":"D","mcurl":"annulus.php?r1=565&r2=5615&pl=Calculate"},"562":{"question":"An annulus has small radius of 562 and large radius of 566. Calculate the area.","answer_a":"4509π","answer_b":"4511π","answer_c":"4512π","answer_d":"4510π","answer_correct":"C","mcurl":"annulus.php?r1=566&r2=5625&pl=Calculate"},"563":{"question":"An annulus has small radius of 563 and large radius of 567. Calculate the area.","answer_a":"4519π","answer_b":"4522π","answer_c":"4517π","answer_d":"4520π","answer_correct":"D","mcurl":"annulus.php?r1=567&r2=5635&pl=Calculate"},"564":{"question":"What is the area of an annulus with small radius of 566 and large radius of 568?","answer_a":"2266π","answer_b":"2267π","answer_c":"2271π","answer_d":"2268π","answer_correct":"D","mcurl":"annulus.php?r1=568&r2=5665&pl=Calculate"},"565":{"question":"An annulus has small radius of 566 and large radius of 569. Calculate the area.","answer_a":"3402π","answer_b":"3405π","answer_c":"3406π","answer_d":"3407π","answer_correct":"B","mcurl":"annulus.php?r1=569&r2=5665&pl=Calculate"},"566":{"question":"An annulus has small radius of 569 and large radius of 570. Calculate the area.","answer_a":"1141π","answer_b":"1139π","answer_c":"1138π","answer_d":"1142π","answer_correct":"B","mcurl":"annulus.php?r1=570&r2=5695&pl=Calculate"},"567":{"question":"What is the area of an annulus with small radius of 570 and large radius of 571?","answer_a":"1140π","answer_b":"1139π","answer_c":"1138π","answer_d":"1141π","answer_correct":"D","mcurl":"annulus.php?r1=571&r2=5705&pl=Calculate"},"568":{"question":"What is the area of an annulus with small radius of 570 and large radius of 572?","answer_a":"2286π","answer_b":"2287π","answer_c":"2284π","answer_d":"2283π","answer_correct":"C","mcurl":"annulus.php?r1=572&r2=5705&pl=Calculate"},"569":{"question":"What is the area of an annulus with small radius of 569 and large radius of 573?","answer_a":"4568π","answer_b":"4565π","answer_c":"4569π","answer_d":"4570π","answer_correct":"A","mcurl":"annulus.php?r1=573&r2=5695&pl=Calculate"},"570":{"question":"What is the area of an annulus with small radius of 572 and large radius of 574?","answer_a":"2291π","answer_b":"2292π","answer_c":"2290π","answer_d":"2295π","answer_correct":"B","mcurl":"annulus.php?r1=574&r2=5725&pl=Calculate"},"571":{"question":"An annulus has small radius of 571 and large radius of 575. Calculate the area.","answer_a":"4583π","answer_b":"4584π","answer_c":"4587π","answer_d":"4582π","answer_correct":"B","mcurl":"annulus.php?r1=575&r2=5715&pl=Calculate"},"572":{"question":"An annulus has small radius of 573 and large radius of 576. Calculate the area.","answer_a":"3449π","answer_b":"3447π","answer_c":"3448π","answer_d":"3450π","answer_correct":"B","mcurl":"annulus.php?r1=576&r2=5735&pl=Calculate"},"573":{"question":"An annulus has small radius of 574 and large radius of 577. Calculate the area.","answer_a":"3452π","answer_b":"3450π","answer_c":"3455π","answer_d":"3453π","answer_correct":"D","mcurl":"annulus.php?r1=577&r2=5745&pl=Calculate"},"574":{"question":"An annulus has small radius of 575 and large radius of 578. Calculate the area.","answer_a":"3457π","answer_b":"3456π","answer_c":"3459π","answer_d":"3458π","answer_correct":"C","mcurl":"annulus.php?r1=578&r2=5755&pl=Calculate"},"575":{"question":"An annulus has small radius of 575 and large radius of 579. Calculate the area.","answer_a":"4616π","answer_b":"4619π","answer_c":"4615π","answer_d":"4618π","answer_correct":"A","mcurl":"annulus.php?r1=579&r2=5755&pl=Calculate"},"576":{"question":"What is the area of an annulus with small radius of 577 and large radius of 580?","answer_a":"3472π","answer_b":"3468π","answer_c":"3471π","answer_d":"3469π","answer_correct":"C","mcurl":"annulus.php?r1=580&r2=5775&pl=Calculate"},"577":{"question":"An annulus has small radius of 578 and large radius of 581. Calculate the area.","answer_a":"3474π","answer_b":"3476π","answer_c":"3477π","answer_d":"3479π","answer_correct":"C","mcurl":"annulus.php?r1=581&r2=5785&pl=Calculate"},"578":{"question":"An annulus has small radius of 581 and large radius of 582. Calculate the area.","answer_a":"1161π","answer_b":"1163π","answer_c":"1166π","answer_d":"1162π","answer_correct":"B","mcurl":"annulus.php?r1=582&r2=5815&pl=Calculate"},"579":{"question":"An annulus has small radius of 581 and large radius of 583. Calculate the area.","answer_a":"2327π","answer_b":"2328π","answer_c":"2331π","answer_d":"2326π","answer_correct":"B","mcurl":"annulus.php?r1=583&r2=5815&pl=Calculate"},"580":{"question":"What is the area of an annulus with small radius of 581 and large radius of 584?","answer_a":"3492π","answer_b":"3493π","answer_c":"3495π","answer_d":"3496π","answer_correct":"C","mcurl":"annulus.php?r1=584&r2=5815&pl=Calculate"},"581":{"question":"An annulus has small radius of 584 and large radius of 585. Calculate the area.","answer_a":"1169π","answer_b":"1170π","answer_c":"1172π","answer_d":"1171π","answer_correct":"A","mcurl":"annulus.php?r1=585&r2=5845&pl=Calculate"},"582":{"question":"An annulus has small radius of 583 and large radius of 586. Calculate the area.","answer_a":"3508π","answer_b":"3505π","answer_c":"3504π","answer_d":"3507π","answer_correct":"D","mcurl":"annulus.php?r1=586&r2=5835&pl=Calculate"},"583":{"question":"An annulus has small radius of 585 and large radius of 587. Calculate the area.","answer_a":"2344π","answer_b":"2345π","answer_c":"2341π","answer_d":"2346π","answer_correct":"A","mcurl":"annulus.php?r1=587&r2=5855&pl=Calculate"},"584":{"question":"An annulus has small radius of 587 and large radius of 588. Calculate the area.","answer_a":"1175π","answer_b":"1174π","answer_c":"1177π","answer_d":"1172π","answer_correct":"A","mcurl":"annulus.php?r1=588&r2=5875&pl=Calculate"},"585":{"question":"An annulus has small radius of 586 and large radius of 589. Calculate the area.","answer_a":"3527π","answer_b":"3524π","answer_c":"3525π","answer_d":"3528π","answer_correct":"C","mcurl":"annulus.php?r1=589&r2=5865&pl=Calculate"},"586":{"question":"An annulus has small radius of 587 and large radius of 590. Calculate the area.","answer_a":"3534π","answer_b":"3530π","answer_c":"3531π","answer_d":"3533π","answer_correct":"C","mcurl":"annulus.php?r1=590&r2=5875&pl=Calculate"},"587":{"question":"An annulus has small radius of 587 and large radius of 591. Calculate the area.","answer_a":"4711π","answer_b":"4712π","answer_c":"4710π","answer_d":"4715π","answer_correct":"B","mcurl":"annulus.php?r1=591&r2=5875&pl=Calculate"},"588":{"question":"What is the area of an annulus with small radius of 590 and large radius of 592?","answer_a":"2365π","answer_b":"2366π","answer_c":"2364π","answer_d":"2361π","answer_correct":"C","mcurl":"annulus.php?r1=592&r2=5905&pl=Calculate"},"589":{"question":"An annulus has small radius of 589 and large radius of 593. Calculate the area.","answer_a":"4730π","answer_b":"4728π","answer_c":"4727π","answer_d":"4731π","answer_correct":"B","mcurl":"annulus.php?r1=593&r2=5895&pl=Calculate"},"590":{"question":"An annulus has small radius of 592 and large radius of 594. Calculate the area.","answer_a":"2374π","answer_b":"2373π","answer_c":"2372π","answer_d":"2375π","answer_correct":"C","mcurl":"annulus.php?r1=594&r2=5925&pl=Calculate"},"591":{"question":"What is the area of an annulus with small radius of 593 and large radius of 595?","answer_a":"2375π","answer_b":"2376π","answer_c":"2379π","answer_d":"2374π","answer_correct":"B","mcurl":"annulus.php?r1=595&r2=5935&pl=Calculate"},"592":{"question":"An annulus has small radius of 593 and large radius of 596. Calculate the area.","answer_a":"3569π","answer_b":"3564π","answer_c":"3568π","answer_d":"3567π","answer_correct":"D","mcurl":"annulus.php?r1=596&r2=5935&pl=Calculate"},"593":{"question":"What is the area of an annulus with small radius of 595 and large radius of 597?","answer_a":"2386π","answer_b":"2387π","answer_c":"2385π","answer_d":"2384π","answer_correct":"D","mcurl":"annulus.php?r1=597&r2=5955&pl=Calculate"},"594":{"question":"What is the area of an annulus with small radius of 597 and large radius of 598?","answer_a":"1196π","answer_b":"1193π","answer_c":"1198π","answer_d":"1195π","answer_correct":"D","mcurl":"annulus.php?r1=598&r2=5975&pl=Calculate"},"595":{"question":"An annulus has small radius of 598 and large radius of 599. Calculate the area.","answer_a":"1196π","answer_b":"1197π","answer_c":"1199π","answer_d":"1200π","answer_correct":"B","mcurl":"annulus.php?r1=599&r2=5985&pl=Calculate"},"596":{"question":"An annulus has small radius of 597 and large radius of 600. Calculate the area.","answer_a":"3591π","answer_b":"3589π","answer_c":"3590π","answer_d":"3588π","answer_correct":"A","mcurl":"annulus.php?r1=600&r2=5975&pl=Calculate"},"597":{"question":"What is the area of an annulus with small radius of 597 and large radius of 601?","answer_a":"4792π","answer_b":"4794π","answer_c":"4791π","answer_d":"4795π","answer_correct":"A","mcurl":"annulus.php?r1=601&r2=5975&pl=Calculate"},"598":{"question":"What is the area of an annulus with small radius of 600 and large radius of 602?","answer_a":"2402π","answer_b":"2404π","answer_c":"2401π","answer_d":"2405π","answer_correct":"B","mcurl":"annulus.php?r1=602&r2=6005&pl=Calculate"},"599":{"question":"What is the area of an annulus with small radius of 601 and large radius of 603?","answer_a":"2405π","answer_b":"2410π","answer_c":"2408π","answer_d":"2407π","answer_correct":"C","mcurl":"annulus.php?r1=603&r2=6015&pl=Calculate"},"600":{"question":"What is the area of an annulus with small radius of 600 and large radius of 604?","answer_a":"4817π","answer_b":"4816π","answer_c":"4813π","answer_d":"4818π","answer_correct":"B","mcurl":"annulus.php?r1=604&r2=6005&pl=Calculate"},"601":{"question":"What is the area of an annulus with small radius of 604 and large radius of 605?","answer_a":"1212π","answer_b":"1209π","answer_c":"1210π","answer_d":"1211π","answer_correct":"B","mcurl":"annulus.php?r1=605&r2=6045&pl=Calculate"},"602":{"question":"An annulus has small radius of 604 and large radius of 606. Calculate the area.","answer_a":"2419π","answer_b":"2417π","answer_c":"2418π","answer_d":"2420π","answer_correct":"D","mcurl":"annulus.php?r1=606&r2=6045&pl=Calculate"},"603":{"question":"An annulus has small radius of 606 and large radius of 607. Calculate the area.","answer_a":"1210π","answer_b":"1211π","answer_c":"1214π","answer_d":"1213π","answer_correct":"D","mcurl":"annulus.php?r1=607&r2=6065&pl=Calculate"},"604":{"question":"What is the area of an annulus with small radius of 607 and large radius of 608?","answer_a":"1215π","answer_b":"1214π","answer_c":"1213π","answer_d":"1212π","answer_correct":"A","mcurl":"annulus.php?r1=608&r2=6075&pl=Calculate"},"605":{"question":"An annulus has small radius of 606 and large radius of 609. Calculate the area.","answer_a":"3648π","answer_b":"3643π","answer_c":"3646π","answer_d":"3645π","answer_correct":"D","mcurl":"annulus.php?r1=609&r2=6065&pl=Calculate"},"606":{"question":"What is the area of an annulus with small radius of 607 and large radius of 610?","answer_a":"3649π","answer_b":"3651π","answer_c":"3648π","answer_d":"3650π","answer_correct":"B","mcurl":"annulus.php?r1=610&r2=6075&pl=Calculate"},"607":{"question":"An annulus has small radius of 609 and large radius of 611. Calculate the area.","answer_a":"2437π","answer_b":"2438π","answer_c":"2441π","answer_d":"2440π","answer_correct":"D","mcurl":"annulus.php?r1=611&r2=6095&pl=Calculate"},"608":{"question":"What is the area of an annulus with small radius of 610 and large radius of 612?","answer_a":"2444π","answer_b":"2442π","answer_c":"2447π","answer_d":"2445π","answer_correct":"A","mcurl":"annulus.php?r1=612&r2=6105&pl=Calculate"},"609":{"question":"What is the area of an annulus with small radius of 610 and large radius of 613?","answer_a":"3666π","answer_b":"3670π","answer_c":"3669π","answer_d":"3667π","answer_correct":"C","mcurl":"annulus.php?r1=613&r2=6105&pl=Calculate"},"610":{"question":"What is the area of an annulus with small radius of 612 and large radius of 614?","answer_a":"2452π","answer_b":"2451π","answer_c":"2454π","answer_d":"2455π","answer_correct":"A","mcurl":"annulus.php?r1=614&r2=6125&pl=Calculate"},"611":{"question":"What is the area of an annulus with small radius of 612 and large radius of 615?","answer_a":"3683π","answer_b":"3684π","answer_c":"3680π","answer_d":"3681π","answer_correct":"D","mcurl":"annulus.php?r1=615&r2=6125&pl=Calculate"},"612":{"question":"An annulus has small radius of 612 and large radius of 616. Calculate the area.","answer_a":"4914π","answer_b":"4912π","answer_c":"4909π","answer_d":"4913π","answer_correct":"B","mcurl":"annulus.php?r1=616&r2=6125&pl=Calculate"},"613":{"question":"What is the area of an annulus with small radius of 615 and large radius of 617?","answer_a":"2463π","answer_b":"2461π","answer_c":"2466π","answer_d":"2464π","answer_correct":"D","mcurl":"annulus.php?r1=617&r2=6155&pl=Calculate"},"614":{"question":"An annulus has small radius of 615 and large radius of 618. Calculate the area.","answer_a":"3697π","answer_b":"3702π","answer_c":"3700π","answer_d":"3699π","answer_correct":"D","mcurl":"annulus.php?r1=618&r2=6155&pl=Calculate"},"615":{"question":"An annulus has small radius of 616 and large radius of 619. Calculate the area.","answer_a":"3702π","answer_b":"3703π","answer_c":"3704π","answer_d":"3705π","answer_correct":"D","mcurl":"annulus.php?r1=619&r2=6165&pl=Calculate"},"616":{"question":"An annulus has small radius of 618 and large radius of 620. Calculate the area.","answer_a":"2476π","answer_b":"2478π","answer_c":"2473π","answer_d":"2477π","answer_correct":"A","mcurl":"annulus.php?r1=620&r2=6185&pl=Calculate"},"617":{"question":"What is the area of an annulus with small radius of 619 and large radius of 621?","answer_a":"2479π","answer_b":"2482π","answer_c":"2483π","answer_d":"2480π","answer_correct":"D","mcurl":"annulus.php?r1=621&r2=6195&pl=Calculate"},"618":{"question":"What is the area of an annulus with small radius of 620 and large radius of 622?","answer_a":"2484π","answer_b":"2486π","answer_c":"2485π","answer_d":"2487π","answer_correct":"A","mcurl":"annulus.php?r1=622&r2=6205&pl=Calculate"},"619":{"question":"What is the area of an annulus with small radius of 620 and large radius of 623?","answer_a":"3729π","answer_b":"3728π","answer_c":"3727π","answer_d":"3732π","answer_correct":"A","mcurl":"annulus.php?r1=623&r2=6205&pl=Calculate"},"620":{"question":"What is the area of an annulus with small radius of 623 and large radius of 624?","answer_a":"1246π","answer_b":"1244π","answer_c":"1247π","answer_d":"1249π","answer_correct":"C","mcurl":"annulus.php?r1=624&r2=6235&pl=Calculate"},"621":{"question":"An annulus has small radius of 624 and large radius of 625. Calculate the area.","answer_a":"1247π","answer_b":"1250π","answer_c":"1252π","answer_d":"1249π","answer_correct":"D","mcurl":"annulus.php?r1=625&r2=6245&pl=Calculate"},"622":{"question":"An annulus has small radius of 624 and large radius of 626. Calculate the area.","answer_a":"2502π","answer_b":"2501π","answer_c":"2500π","answer_d":"2503π","answer_correct":"C","mcurl":"annulus.php?r1=626&r2=6245&pl=Calculate"},"623":{"question":"An annulus has small radius of 625 and large radius of 627. Calculate the area.","answer_a":"2503π","answer_b":"2507π","answer_c":"2502π","answer_d":"2504π","answer_correct":"D","mcurl":"annulus.php?r1=627&r2=6255&pl=Calculate"},"624":{"question":"An annulus has small radius of 625 and large radius of 628. Calculate the area.","answer_a":"3762π","answer_b":"3758π","answer_c":"3759π","answer_d":"3757π","answer_correct":"C","mcurl":"annulus.php?r1=628&r2=6255&pl=Calculate"},"625":{"question":"What is the area of an annulus with small radius of 626 and large radius of 629?","answer_a":"3764π","answer_b":"3765π","answer_c":"3762π","answer_d":"3767π","answer_correct":"B","mcurl":"annulus.php?r1=629&r2=6265&pl=Calculate"},"626":{"question":"What is the area of an annulus with small radius of 629 and large radius of 630?","answer_a":"1261π","answer_b":"1259π","answer_c":"1256π","answer_d":"1260π","answer_correct":"B","mcurl":"annulus.php?r1=630&r2=6295&pl=Calculate"},"627":{"question":"What is the area of an annulus with small radius of 629 and large radius of 631?","answer_a":"2523π","answer_b":"2521π","answer_c":"2520π","answer_d":"2518π","answer_correct":"C","mcurl":"annulus.php?r1=631&r2=6295&pl=Calculate"},"628":{"question":"What is the area of an annulus with small radius of 631 and large radius of 632?","answer_a":"1266π","answer_b":"1265π","answer_c":"1264π","answer_d":"1263π","answer_correct":"D","mcurl":"annulus.php?r1=632&r2=6315&pl=Calculate"},"629":{"question":"An annulus has small radius of 632 and large radius of 633. Calculate the area.","answer_a":"1266π","answer_b":"1263π","answer_c":"1262π","answer_d":"1265π","answer_correct":"D","mcurl":"annulus.php?r1=633&r2=6325&pl=Calculate"},"630":{"question":"An annulus has small radius of 631 and large radius of 634. Calculate the area.","answer_a":"3798π","answer_b":"3797π","answer_c":"3795π","answer_d":"3794π","answer_correct":"C","mcurl":"annulus.php?r1=634&r2=6315&pl=Calculate"},"631":{"question":"An annulus has small radius of 631 and large radius of 635. Calculate the area.","answer_a":"5065π","answer_b":"5064π","answer_c":"5066π","answer_d":"5067π","answer_correct":"B","mcurl":"annulus.php?r1=635&r2=6315&pl=Calculate"},"632":{"question":"What is the area of an annulus with small radius of 634 and large radius of 636?","answer_a":"2539π","answer_b":"2540π","answer_c":"2538π","answer_d":"2543π","answer_correct":"B","mcurl":"annulus.php?r1=636&r2=6345&pl=Calculate"},"633":{"question":"What is the area of an annulus with small radius of 633 and large radius of 637?","answer_a":"5079π","answer_b":"5077π","answer_c":"5078π","answer_d":"5080π","answer_correct":"D","mcurl":"annulus.php?r1=637&r2=6335&pl=Calculate"},"634":{"question":"An annulus has small radius of 636 and large radius of 638. Calculate the area.","answer_a":"2549π","answer_b":"2551π","answer_c":"2546π","answer_d":"2548π","answer_correct":"D","mcurl":"annulus.php?r1=638&r2=6365&pl=Calculate"},"635":{"question":"What is the area of an annulus with small radius of 637 and large radius of 639?","answer_a":"2549π","answer_b":"2553π","answer_c":"2554π","answer_d":"2552π","answer_correct":"D","mcurl":"annulus.php?r1=639&r2=6375&pl=Calculate"},"636":{"question":"An annulus has small radius of 638 and large radius of 640. Calculate the area.","answer_a":"2556π","answer_b":"2555π","answer_c":"2554π","answer_d":"2559π","answer_correct":"A","mcurl":"annulus.php?r1=640&r2=6385&pl=Calculate"},"637":{"question":"What is the area of an annulus with small radius of 638 and large radius of 641?","answer_a":"3837π","answer_b":"3839π","answer_c":"3834π","answer_d":"3836π","answer_correct":"A","mcurl":"annulus.php?r1=641&r2=6385&pl=Calculate"},"638":{"question":"An annulus has small radius of 639 and large radius of 642. Calculate the area.","answer_a":"3843π","answer_b":"3846π","answer_c":"3842π","answer_d":"3845π","answer_correct":"A","mcurl":"annulus.php?r1=642&r2=6395&pl=Calculate"},"639":{"question":"An annulus has small radius of 639 and large radius of 643. Calculate the area.","answer_a":"5129π","answer_b":"5126π","answer_c":"5128π","answer_d":"5125π","answer_correct":"C","mcurl":"annulus.php?r1=643&r2=6395&pl=Calculate"},"640":{"question":"An annulus has small radius of 640 and large radius of 644. Calculate the area.","answer_a":"5138π","answer_b":"5139π","answer_c":"5135π","answer_d":"5136π","answer_correct":"D","mcurl":"annulus.php?r1=644&r2=6405&pl=Calculate"},"641":{"question":"An annulus has small radius of 644 and large radius of 645. Calculate the area.","answer_a":"1291π","answer_b":"1292π","answer_c":"1290π","answer_d":"1289π","answer_correct":"D","mcurl":"annulus.php?r1=645&r2=6445&pl=Calculate"},"642":{"question":"An annulus has small radius of 645 and large radius of 646. 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Calculate the area.","answer_a":"1300π","answer_b":"1296π","answer_c":"1299π","answer_d":"1297π","answer_correct":"C","mcurl":"annulus.php?r1=650&r2=6495&pl=Calculate"},"647":{"question":"An annulus has small radius of 648 and large radius of 651. Calculate the area.","answer_a":"3900π","answer_b":"3897π","answer_c":"3896π","answer_d":"3895π","answer_correct":"B","mcurl":"annulus.php?r1=651&r2=6485&pl=Calculate"},"648":{"question":"An annulus has small radius of 650 and large radius of 652. Calculate the area.","answer_a":"2605π","answer_b":"2606π","answer_c":"2604π","answer_d":"2607π","answer_correct":"C","mcurl":"annulus.php?r1=652&r2=6505&pl=Calculate"},"649":{"question":"An annulus has small radius of 651 and large radius of 653. Calculate the area.","answer_a":"2608π","answer_b":"2610π","answer_c":"2605π","answer_d":"2609π","answer_correct":"A","mcurl":"annulus.php?r1=653&r2=6515&pl=Calculate"},"650":{"question":"What is the area of an annulus with small radius of 651 and large radius of 654?","answer_a":"3912π","answer_b":"3917π","answer_c":"3916π","answer_d":"3915π","answer_correct":"D","mcurl":"annulus.php?r1=654&r2=6515&pl=Calculate"},"651":{"question":"An annulus has small radius of 654 and large radius of 655. Calculate the area.","answer_a":"1312π","answer_b":"1307π","answer_c":"1309π","answer_d":"1310π","answer_correct":"C","mcurl":"annulus.php?r1=655&r2=6545&pl=Calculate"},"652":{"question":"An annulus has small radius of 654 and large radius of 656. Calculate the area.","answer_a":"2618π","answer_b":"2619π","answer_c":"2620π","answer_d":"2617π","answer_correct":"C","mcurl":"annulus.php?r1=656&r2=6545&pl=Calculate"},"653":{"question":"An annulus has small radius of 655 and large radius of 657. Calculate the area.","answer_a":"2621π","answer_b":"2625π","answer_c":"2624π","answer_d":"2626π","answer_correct":"C","mcurl":"annulus.php?r1=657&r2=6555&pl=Calculate"},"654":{"question":"An annulus has small radius of 655 and large radius of 658. Calculate the area.","answer_a":"3937π","answer_b":"3940π","answer_c":"3939π","answer_d":"3936π","answer_correct":"C","mcurl":"annulus.php?r1=658&r2=6555&pl=Calculate"},"655":{"question":"An annulus has small radius of 657 and large radius of 659. Calculate the area.","answer_a":"2633π","answer_b":"2632π","answer_c":"2629π","answer_d":"2634π","answer_correct":"B","mcurl":"annulus.php?r1=659&r2=6575&pl=Calculate"},"656":{"question":"What is the area of an annulus with small radius of 657 and large radius of 660?","answer_a":"3952π","answer_b":"3951π","answer_c":"3948π","answer_d":"3949π","answer_correct":"B","mcurl":"annulus.php?r1=660&r2=6575&pl=Calculate"},"657":{"question":"What is the area of an annulus with small radius of 657 and large radius of 661?","answer_a":"5269π","answer_b":"5272π","answer_c":"5274π","answer_d":"5271π","answer_correct":"B","mcurl":"annulus.php?r1=661&r2=6575&pl=Calculate"},"658":{"question":"An annulus has small radius of 658 and large radius of 662. Calculate the area.","answer_a":"5280π","answer_b":"5277π","answer_c":"5279π","answer_d":"5282π","answer_correct":"A","mcurl":"annulus.php?r1=662&r2=6585&pl=Calculate"},"659":{"question":"What is the area of an annulus with small radius of 659 and large radius of 663?","answer_a":"5285π","answer_b":"5290π","answer_c":"5288π","answer_d":"5287π","answer_correct":"C","mcurl":"annulus.php?r1=663&r2=6595&pl=Calculate"},"660":{"question":"What is the area of an annulus with small radius of 662 and large radius of 664?","answer_a":"2649π","answer_b":"2653π","answer_c":"2654π","answer_d":"2652π","answer_correct":"D","mcurl":"annulus.php?r1=664&r2=6625&pl=Calculate"},"661":{"question":"What is the area of an annulus with small radius of 664 and large radius of 665?","answer_a":"1332π","answer_b":"1328π","answer_c":"1329π","answer_d":"1331π","answer_correct":"C","mcurl":"annulus.php?r1=665&r2=6645&pl=Calculate"},"662":{"question":"What is the area of an annulus with small radius of 663 and large radius of 666?","answer_a":"3985π","answer_b":"3986π","answer_c":"3987π","answer_d":"3990π","answer_correct":"C","mcurl":"annulus.php?r1=666&r2=6635&pl=Calculate"},"663":{"question":"An annulus has small radius of 666 and large radius of 667. Calculate the area.","answer_a":"1332π","answer_b":"1335π","answer_c":"1333π","answer_d":"1336π","answer_correct":"C","mcurl":"annulus.php?r1=667&r2=6665&pl=Calculate"},"664":{"question":"An annulus has small radius of 665 and large radius of 668. Calculate the area.","answer_a":"3996π","answer_b":"3999π","answer_c":"3998π","answer_d":"3997π","answer_correct":"B","mcurl":"annulus.php?r1=668&r2=6655&pl=Calculate"},"665":{"question":"What is the area of an annulus with small radius of 665 and large radius of 669?","answer_a":"5338π","answer_b":"5336π","answer_c":"5339π","answer_d":"5337π","answer_correct":"B","mcurl":"annulus.php?r1=669&r2=6655&pl=Calculate"},"666":{"question":"An annulus has small radius of 667 and large radius of 670. Calculate the area.","answer_a":"4014π","answer_b":"4011π","answer_c":"4013π","answer_d":"4012π","answer_correct":"B","mcurl":"annulus.php?r1=670&r2=6675&pl=Calculate"},"667":{"question":"An annulus has small radius of 667 and large radius of 671. Calculate the area.","answer_a":"5354π","answer_b":"5349π","answer_c":"5352π","answer_d":"5353π","answer_correct":"C","mcurl":"annulus.php?r1=671&r2=6675&pl=Calculate"},"668":{"question":"An annulus has small radius of 668 and large radius of 672. Calculate the area.","answer_a":"5362π","answer_b":"5357π","answer_c":"5361π","answer_d":"5360π","answer_correct":"D","mcurl":"annulus.php?r1=672&r2=6685&pl=Calculate"},"669":{"question":"An annulus has small radius of 672 and large radius of 673. Calculate the area.","answer_a":"1345π","answer_b":"1346π","answer_c":"1342π","answer_d":"1347π","answer_correct":"A","mcurl":"annulus.php?r1=673&r2=6725&pl=Calculate"},"670":{"question":"What is the area of an annulus with small radius of 671 and large radius of 674?","answer_a":"4035π","answer_b":"4038π","answer_c":"4034π","answer_d":"4033π","answer_correct":"A","mcurl":"annulus.php?r1=674&r2=6715&pl=Calculate"},"671":{"question":"An annulus has small radius of 673 and large radius of 675. Calculate the area.","answer_a":"2696π","answer_b":"2697π","answer_c":"2699π","answer_d":"2694π","answer_correct":"A","mcurl":"annulus.php?r1=675&r2=6735&pl=Calculate"},"672":{"question":"An annulus has small radius of 674 and large radius of 676. Calculate the area.","answer_a":"2700π","answer_b":"2698π","answer_c":"2703π","answer_d":"2701π","answer_correct":"A","mcurl":"annulus.php?r1=676&r2=6745&pl=Calculate"},"673":{"question":"An annulus has small radius of 673 and large radius of 677. Calculate the area.","answer_a":"5397π","answer_b":"5398π","answer_c":"5400π","answer_d":"5401π","answer_correct":"C","mcurl":"annulus.php?r1=677&r2=6735&pl=Calculate"},"674":{"question":"What is the area of an annulus with small radius of 676 and large radius of 678?","answer_a":"2706π","answer_b":"2709π","answer_c":"2705π","answer_d":"2708π","answer_correct":"D","mcurl":"annulus.php?r1=678&r2=6765&pl=Calculate"},"675":{"question":"What is the area of an annulus with small radius of 675 and large radius of 679?","answer_a":"5418π","answer_b":"5413π","answer_c":"5416π","answer_d":"5415π","answer_correct":"C","mcurl":"annulus.php?r1=679&r2=6755&pl=Calculate"},"676":{"question":"What is the area of an annulus with small radius of 677 and large radius of 680?","answer_a":"4070π","answer_b":"4071π","answer_c":"4069π","answer_d":"4074π","answer_correct":"B","mcurl":"annulus.php?r1=680&r2=6775&pl=Calculate"},"677":{"question":"An annulus has small radius of 677 and large radius of 681. Calculate the area.","answer_a":"5432π","answer_b":"5433π","answer_c":"5430π","answer_d":"5435π","answer_correct":"A","mcurl":"annulus.php?r1=681&r2=6775&pl=Calculate"},"678":{"question":"An annulus has small radius of 681 and large radius of 682. Calculate the area.","answer_a":"1363π","answer_b":"1364π","answer_c":"1360π","answer_d":"1365π","answer_correct":"A","mcurl":"annulus.php?r1=682&r2=6815&pl=Calculate"},"679":{"question":"What is the area of an annulus with small radius of 681 and large radius of 683?","answer_a":"2728π","answer_b":"2725π","answer_c":"2727π","answer_d":"2726π","answer_correct":"A","mcurl":"annulus.php?r1=683&r2=6815&pl=Calculate"},"680":{"question":"What is the area of an annulus with small radius of 682 and large radius of 684?","answer_a":"2734π","answer_b":"2731π","answer_c":"2735π","answer_d":"2732π","answer_correct":"D","mcurl":"annulus.php?r1=684&r2=6825&pl=Calculate"},"681":{"question":"What is the area of an annulus with small radius of 681 and large radius of 685?","answer_a":"5462π","answer_b":"5463π","answer_c":"5464π","answer_d":"5461π","answer_correct":"C","mcurl":"annulus.php?r1=685&r2=6815&pl=Calculate"},"682":{"question":"What is the area of an annulus with small radius of 685 and large radius of 686?","answer_a":"1368π","answer_b":"1370π","answer_c":"1371π","answer_d":"1369π","answer_correct":"C","mcurl":"annulus.php?r1=686&r2=6855&pl=Calculate"},"683":{"question":"An annulus has small radius of 683 and large radius of 687. Calculate the area.","answer_a":"5480π","answer_b":"5479π","answer_c":"5482π","answer_d":"5477π","answer_correct":"A","mcurl":"annulus.php?r1=687&r2=6835&pl=Calculate"},"684":{"question":"What is the area of an annulus with small radius of 684 and large radius of 688?","answer_a":"5487π","answer_b":"5490π","answer_c":"5488π","answer_d":"5485π","answer_correct":"C","mcurl":"annulus.php?r1=688&r2=6845&pl=Calculate"},"685":{"question":"An annulus has small radius of 685 and large radius of 689. Calculate the area.","answer_a":"5496π","answer_b":"5497π","answer_c":"5499π","answer_d":"5498π","answer_correct":"A","mcurl":"annulus.php?r1=689&r2=6855&pl=Calculate"},"686":{"question":"What is the area of an annulus with small radius of 689 and large radius of 690?","answer_a":"1377π","answer_b":"1379π","answer_c":"1376π","answer_d":"1378π","answer_correct":"B","mcurl":"annulus.php?r1=690&r2=6895&pl=Calculate"},"687":{"question":"What is the area of an annulus with small radius of 690 and large radius of 691?","answer_a":"1380π","answer_b":"1384π","answer_c":"1383π","answer_d":"1381π","answer_correct":"D","mcurl":"annulus.php?r1=691&r2=6905&pl=Calculate"},"688":{"question":"An annulus has small radius of 689 and large radius of 692. Calculate the area.","answer_a":"4143π","answer_b":"4145π","answer_c":"4144π","answer_d":"4140π","answer_correct":"A","mcurl":"annulus.php?r1=692&r2=6895&pl=Calculate"},"689":{"question":"An annulus has small radius of 691 and large radius of 693. Calculate the area.","answer_a":"2769π","answer_b":"2771π","answer_c":"2768π","answer_d":"2766π","answer_correct":"C","mcurl":"annulus.php?r1=693&r2=6915&pl=Calculate"},"690":{"question":"What is the area of an annulus with small radius of 691 and large radius of 694?","answer_a":"4158π","answer_b":"4153π","answer_c":"4156π","answer_d":"4155π","answer_correct":"D","mcurl":"annulus.php?r1=694&r2=6915&pl=Calculate"},"691":{"question":"An annulus has small radius of 693 and large radius of 695. Calculate the area.","answer_a":"2779π","answer_b":"2774π","answer_c":"2777π","answer_d":"2776π","answer_correct":"D","mcurl":"annulus.php?r1=695&r2=6935&pl=Calculate"},"692":{"question":"An annulus has small radius of 695 and large radius of 696. Calculate the area.","answer_a":"1389π","answer_b":"1394π","answer_c":"1390π","answer_d":"1391π","answer_correct":"D","mcurl":"annulus.php?r1=696&r2=6955&pl=Calculate"},"693":{"question":"An annulus has small radius of 693 and large radius of 697. 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Calculate the area.","answer_a":"5585π","answer_b":"5584π","answer_c":"5581π","answer_d":"5586π","answer_correct":"B","mcurl":"annulus.php?r1=700&r2=6965&pl=Calculate"},"697":{"question":"What is the area of an annulus with small radius of 700 and large radius of 701?","answer_a":"1400π","answer_b":"1399π","answer_c":"1404π","answer_d":"1401π","answer_correct":"D","mcurl":"annulus.php?r1=701&r2=7005&pl=Calculate"},"698":{"question":"An annulus has small radius of 699 and large radius of 702. Calculate the area.","answer_a":"4203π","answer_b":"4201π","answer_c":"4202π","answer_d":"4206π","answer_correct":"A","mcurl":"annulus.php?r1=702&r2=6995&pl=Calculate"},"699":{"question":"An annulus has small radius of 701 and large radius of 703. Calculate the area.","answer_a":"2808π","answer_b":"2807π","answer_c":"2810π","answer_d":"2811π","answer_correct":"A","mcurl":"annulus.php?r1=703&r2=7015&pl=Calculate"},"700":{"question":"An annulus has small radius of 700 and large radius of 704. Calculate the area.","answer_a":"5614π","answer_b":"5617π","answer_c":"5619π","answer_d":"5616π","answer_correct":"D","mcurl":"annulus.php?r1=704&r2=7005&pl=Calculate"},"701":{"question":"An annulus has small radius of 704 and large radius of 705. Calculate the area.","answer_a":"1410π","answer_b":"1412π","answer_c":"1409π","answer_d":"1411π","answer_correct":"C","mcurl":"annulus.php?r1=705&r2=7045&pl=Calculate"},"702":{"question":"What is the area of an annulus with small radius of 704 and large radius of 706?","answer_a":"2822π","answer_b":"2819π","answer_c":"2820π","answer_d":"2817π","answer_correct":"C","mcurl":"annulus.php?r1=706&r2=7045&pl=Calculate"},"703":{"question":"An annulus has small radius of 706 and large radius of 707. Calculate the area.","answer_a":"1412π","answer_b":"1415π","answer_c":"1410π","answer_d":"1413π","answer_correct":"D","mcurl":"annulus.php?r1=707&r2=7065&pl=Calculate"},"704":{"question":"What is the area of an annulus with small radius of 704 and large radius of 708?","answer_a":"5647π","answer_b":"5651π","answer_c":"5646π","answer_d":"5648π","answer_correct":"D","mcurl":"annulus.php?r1=708&r2=7045&pl=Calculate"},"705":{"question":"What is the area of an annulus with small radius of 706 and large radius of 709?","answer_a":"4242π","answer_b":"4245π","answer_c":"4247π","answer_d":"4244π","answer_correct":"B","mcurl":"annulus.php?r1=709&r2=7065&pl=Calculate"},"706":{"question":"An annulus has small radius of 707 and large radius of 710. Calculate the area.","answer_a":"4248π","answer_b":"4253π","answer_c":"4251π","answer_d":"4252π","answer_correct":"C","mcurl":"annulus.php?r1=710&r2=7075&pl=Calculate"},"707":{"question":"What is the area of an annulus with small radius of 709 and large radius of 711?","answer_a":"2841π","answer_b":"2840π","answer_c":"2837π","answer_d":"2838π","answer_correct":"B","mcurl":"annulus.php?r1=711&r2=7095&pl=Calculate"},"708":{"question":"An annulus has small radius of 709 and large radius of 712. Calculate the area.","answer_a":"4260π","answer_b":"4261π","answer_c":"4263π","answer_d":"4262π","answer_correct":"C","mcurl":"annulus.php?r1=712&r2=7095&pl=Calculate"},"709":{"question":"An annulus has small radius of 712 and large radius of 713. Calculate the area.","answer_a":"1423π","answer_b":"1422π","answer_c":"1425π","answer_d":"1424π","answer_correct":"C","mcurl":"annulus.php?r1=713&r2=7125&pl=Calculate"},"710":{"question":"What is the area of an annulus with small radius of 713 and large radius of 714?","answer_a":"1425π","answer_b":"1430π","answer_c":"1426π","answer_d":"1427π","answer_correct":"D","mcurl":"annulus.php?r1=714&r2=7135&pl=Calculate"},"711":{"question":"What is the area of an annulus with small radius of 714 and large radius of 715?","answer_a":"1429π","answer_b":"1431π","answer_c":"1426π","answer_d":"1430π","answer_correct":"A","mcurl":"annulus.php?r1=715&r2=7145&pl=Calculate"},"712":{"question":"What is the area of an annulus with small radius of 713 and large radius of 716?","answer_a":"4288π","answer_b":"4287π","answer_c":"4285π","answer_d":"4284π","answer_correct":"B","mcurl":"annulus.php?r1=716&r2=7135&pl=Calculate"},"713":{"question":"What is the area of an annulus with small radius of 714 and large radius of 717?","answer_a":"4292π","answer_b":"4295π","answer_c":"4296π","answer_d":"4293π","answer_correct":"D","mcurl":"annulus.php?r1=717&r2=7145&pl=Calculate"},"714":{"question":"An annulus has small radius of 715 and large radius of 718. Calculate the area.","answer_a":"4300π","answer_b":"4301π","answer_c":"4296π","answer_d":"4299π","answer_correct":"D","mcurl":"annulus.php?r1=718&r2=7155&pl=Calculate"},"715":{"question":"What is the area of an annulus with small radius of 717 and large radius of 719?","answer_a":"2874π","answer_b":"2871π","answer_c":"2872π","answer_d":"2869π","answer_correct":"C","mcurl":"annulus.php?r1=719&r2=7175&pl=Calculate"},"716":{"question":"An annulus has small radius of 716 and large radius of 720. Calculate the area.","answer_a":"5743π","answer_b":"5747π","answer_c":"5746π","answer_d":"5744π","answer_correct":"D","mcurl":"annulus.php?r1=720&r2=7165&pl=Calculate"},"717":{"question":"An annulus has small radius of 717 and large radius of 721. Calculate the area.","answer_a":"5750π","answer_b":"5755π","answer_c":"5753π","answer_d":"5752π","answer_correct":"D","mcurl":"annulus.php?r1=721&r2=7175&pl=Calculate"},"718":{"question":"An annulus has small radius of 720 and large radius of 722. Calculate the area.","answer_a":"2883π","answer_b":"2881π","answer_c":"2882π","answer_d":"2884π","answer_correct":"D","mcurl":"annulus.php?r1=722&r2=7205&pl=Calculate"},"719":{"question":"What is the area of an annulus with small radius of 721 and large radius of 723?","answer_a":"2891π","answer_b":"2889π","answer_c":"2890π","answer_d":"2888π","answer_correct":"D","mcurl":"annulus.php?r1=723&r2=7215&pl=Calculate"},"720":{"question":"What is the area of an annulus with small radius of 723 and large radius of 724?","answer_a":"1449π","answer_b":"1447π","answer_c":"1448π","answer_d":"1450π","answer_correct":"B","mcurl":"annulus.php?r1=724&r2=7235&pl=Calculate"},"721":{"question":"What is the area of an annulus with small radius of 723 and large radius of 725?","answer_a":"2896π","answer_b":"2898π","answer_c":"2895π","answer_d":"2893π","answer_correct":"A","mcurl":"annulus.php?r1=725&r2=7235&pl=Calculate"},"722":{"question":"An annulus has small radius of 725 and large radius of 726. Calculate the area.","answer_a":"1452π","answer_b":"1451π","answer_c":"1449π","answer_d":"1454π","answer_correct":"B","mcurl":"annulus.php?r1=726&r2=7255&pl=Calculate"},"723":{"question":"An annulus has small radius of 726 and large radius of 727. Calculate the area.","answer_a":"1455π","answer_b":"1456π","answer_c":"1453π","answer_d":"1454π","answer_correct":"C","mcurl":"annulus.php?r1=727&r2=7265&pl=Calculate"},"724":{"question":"What is the area of an annulus with small radius of 725 and large radius of 728?","answer_a":"4361π","answer_b":"4356π","answer_c":"4359π","answer_d":"4360π","answer_correct":"C","mcurl":"annulus.php?r1=728&r2=7255&pl=Calculate"},"725":{"question":"What is the area of an annulus with small radius of 725 and large radius of 729?","answer_a":"5818π","answer_b":"5816π","answer_c":"5819π","answer_d":"5817π","answer_correct":"B","mcurl":"annulus.php?r1=729&r2=7255&pl=Calculate"},"726":{"question":"An annulus has small radius of 727 and large radius of 730. Calculate the area.","answer_a":"4373π","answer_b":"4371π","answer_c":"4372π","answer_d":"4374π","answer_correct":"B","mcurl":"annulus.php?r1=730&r2=7275&pl=Calculate"},"727":{"question":"An annulus has small radius of 729 and large radius of 731. Calculate the area.","answer_a":"2923π","answer_b":"2921π","answer_c":"2918π","answer_d":"2920π","answer_correct":"D","mcurl":"annulus.php?r1=731&r2=7295&pl=Calculate"},"728":{"question":"What is the area of an annulus with small radius of 728 and large radius of 732?","answer_a":"5840π","answer_b":"5843π","answer_c":"5838π","answer_d":"5839π","answer_correct":"A","mcurl":"annulus.php?r1=732&r2=7285&pl=Calculate"},"729":{"question":"An annulus has small radius of 731 and large radius of 733. Calculate the area.","answer_a":"2927π","answer_b":"2928π","answer_c":"2925π","answer_d":"2930π","answer_correct":"B","mcurl":"annulus.php?r1=733&r2=7315&pl=Calculate"},"730":{"question":"An annulus has small radius of 730 and large radius of 734. Calculate the area.","answer_a":"5857π","answer_b":"5856π","answer_c":"5859π","answer_d":"5854π","answer_correct":"B","mcurl":"annulus.php?r1=734&r2=7305&pl=Calculate"},"731":{"question":"What is the area of an annulus with small radius of 731 and large radius of 735?","answer_a":"5865π","answer_b":"5867π","answer_c":"5864π","answer_d":"5866π","answer_correct":"C","mcurl":"annulus.php?r1=735&r2=7315&pl=Calculate"},"732":{"question":"An annulus has small radius of 734 and large radius of 736. Calculate the area.","answer_a":"2938π","answer_b":"2940π","answer_c":"2939π","answer_d":"2943π","answer_correct":"B","mcurl":"annulus.php?r1=736&r2=7345&pl=Calculate"},"733":{"question":"What is the area of an annulus with small radius of 735 and large radius of 737?","answer_a":"2944π","answer_b":"2942π","answer_c":"2941π","answer_d":"2945π","answer_correct":"A","mcurl":"annulus.php?r1=737&r2=7355&pl=Calculate"},"734":{"question":"What is the area of an annulus with small radius of 735 and large radius of 738?","answer_a":"4419π","answer_b":"4416π","answer_c":"4418π","answer_d":"4417π","answer_correct":"A","mcurl":"annulus.php?r1=738&r2=7355&pl=Calculate"},"735":{"question":"What is the area of an annulus with small radius of 736 and large radius of 739?","answer_a":"4425π","answer_b":"4426π","answer_c":"4427π","answer_d":"4422π","answer_correct":"A","mcurl":"annulus.php?r1=739&r2=7365&pl=Calculate"},"736":{"question":"What is the area of an annulus with small radius of 736 and large radius of 740?","answer_a":"5907π","answer_b":"5903π","answer_c":"5904π","answer_d":"5906π","answer_correct":"C","mcurl":"annulus.php?r1=740&r2=7365&pl=Calculate"},"737":{"question":"An annulus has small radius of 740 and large radius of 741. Calculate the area.","answer_a":"1480π","answer_b":"1483π","answer_c":"1481π","answer_d":"1478π","answer_correct":"C","mcurl":"annulus.php?r1=741&r2=7405&pl=Calculate"},"738":{"question":"What is the area of an annulus with small radius of 740 and large radius of 742?","answer_a":"2964π","answer_b":"2961π","answer_c":"2965π","answer_d":"2962π","answer_correct":"A","mcurl":"annulus.php?r1=742&r2=7405&pl=Calculate"},"739":{"question":"What is the area of an annulus with small radius of 741 and large radius of 743?","answer_a":"2965π","answer_b":"2966π","answer_c":"2967π","answer_d":"2968π","answer_correct":"D","mcurl":"annulus.php?r1=743&r2=7415&pl=Calculate"},"740":{"question":"An annulus has small radius of 743 and large radius of 744. Calculate the area.","answer_a":"1486π","answer_b":"1490π","answer_c":"1487π","answer_d":"1489π","answer_correct":"C","mcurl":"annulus.php?r1=744&r2=7435&pl=Calculate"},"741":{"question":"An annulus has small radius of 743 and large radius of 745. Calculate the area.","answer_a":"2973π","answer_b":"2974π","answer_c":"2976π","answer_d":"2977π","answer_correct":"C","mcurl":"annulus.php?r1=745&r2=7435&pl=Calculate"},"742":{"question":"What is the area of an annulus with small radius of 742 and large radius of 746?","answer_a":"5955π","answer_b":"5954π","answer_c":"5951π","answer_d":"5952π","answer_correct":"D","mcurl":"annulus.php?r1=746&r2=7425&pl=Calculate"},"743":{"question":"What is the area of an annulus with small radius of 743 and large radius of 747?","answer_a":"5960π","answer_b":"5958π","answer_c":"5961π","answer_d":"5957π","answer_correct":"A","mcurl":"annulus.php?r1=747&r2=7435&pl=Calculate"},"744":{"question":"An annulus has small radius of 745 and large radius of 748. Calculate the area.","answer_a":"4481π","answer_b":"4480π","answer_c":"4479π","answer_d":"4482π","answer_correct":"C","mcurl":"annulus.php?r1=748&r2=7455&pl=Calculate"},"745":{"question":"An annulus has small radius of 746 and large radius of 749. Calculate the area.","answer_a":"4486π","answer_b":"4487π","answer_c":"4485π","answer_d":"4482π","answer_correct":"C","mcurl":"annulus.php?r1=749&r2=7465&pl=Calculate"},"746":{"question":"An annulus has small radius of 749 and large radius of 750. Calculate the area.","answer_a":"1497π","answer_b":"1499π","answer_c":"1502π","answer_d":"1500π","answer_correct":"B","mcurl":"annulus.php?r1=750&r2=7495&pl=Calculate"},"747":{"question":"What is the area of an annulus with small radius of 750 and large radius of 751?","answer_a":"1501π","answer_b":"1503π","answer_c":"1498π","answer_d":"1502π","answer_correct":"A","mcurl":"annulus.php?r1=751&r2=7505&pl=Calculate"},"748":{"question":"What is the area of an annulus with small radius of 750 and large radius of 752?","answer_a":"3007π","answer_b":"3004π","answer_c":"3003π","answer_d":"3006π","answer_correct":"B","mcurl":"annulus.php?r1=752&r2=7505&pl=Calculate"},"749":{"question":"An annulus has small radius of 749 and large radius of 753. Calculate the area.","answer_a":"6011π","answer_b":"6010π","answer_c":"6008π","answer_d":"6009π","answer_correct":"C","mcurl":"annulus.php?r1=753&r2=7495&pl=Calculate"},"750":{"question":"An annulus has small radius of 751 and large radius of 754. Calculate the area.","answer_a":"4516π","answer_b":"4517π","answer_c":"4512π","answer_d":"4515π","answer_correct":"D","mcurl":"annulus.php?r1=754&r2=7515&pl=Calculate"},"751":{"question":"An annulus has small radius of 751 and large radius of 755. Calculate the area.","answer_a":"6027π","answer_b":"6024π","answer_c":"6026π","answer_d":"6025π","answer_correct":"B","mcurl":"annulus.php?r1=755&r2=7515&pl=Calculate"},"752":{"question":"An annulus has small radius of 752 and large radius of 756. Calculate the area.","answer_a":"6034π","answer_b":"6032π","answer_c":"6035π","answer_d":"6033π","answer_correct":"B","mcurl":"annulus.php?r1=756&r2=7525&pl=Calculate"},"753":{"question":"What is the area of an annulus with small radius of 754 and large radius of 757?","answer_a":"4531π","answer_b":"4536π","answer_c":"4532π","answer_d":"4533π","answer_correct":"D","mcurl":"annulus.php?r1=757&r2=7545&pl=Calculate"},"754":{"question":"An annulus has small radius of 754 and large radius of 758. Calculate the area.","answer_a":"6049π","answer_b":"6045π","answer_c":"6048π","answer_d":"6050π","answer_correct":"C","mcurl":"annulus.php?r1=758&r2=7545&pl=Calculate"},"755":{"question":"What is the area of an annulus with small radius of 756 and large radius of 759?","answer_a":"4545π","answer_b":"4542π","answer_c":"4546π","answer_d":"4547π","answer_correct":"A","mcurl":"annulus.php?r1=759&r2=7565&pl=Calculate"},"756":{"question":"An annulus has small radius of 758 and large radius of 760. Calculate the area.","answer_a":"3034π","answer_b":"3036π","answer_c":"3035π","answer_d":"3033π","answer_correct":"B","mcurl":"annulus.php?r1=760&r2=7585&pl=Calculate"},"757":{"question":"What is the area of an annulus with small radius of 757 and large radius of 761?","answer_a":"6072π","answer_b":"6070π","answer_c":"6069π","answer_d":"6073π","answer_correct":"A","mcurl":"annulus.php?r1=761&r2=7575&pl=Calculate"},"758":{"question":"What is the area of an annulus with small radius of 760 and large radius of 762?","answer_a":"3044π","answer_b":"3047π","answer_c":"3045π","answer_d":"3042π","answer_correct":"A","mcurl":"annulus.php?r1=762&r2=7605&pl=Calculate"},"759":{"question":"What is the area of an annulus with small radius of 759 and large radius of 763?","answer_a":"6090π","answer_b":"6088π","answer_c":"6089π","answer_d":"6091π","answer_correct":"B","mcurl":"annulus.php?r1=763&r2=7595&pl=Calculate"},"760":{"question":"What is the area of an annulus with small radius of 761 and large radius of 764?","answer_a":"4576π","answer_b":"4577π","answer_c":"4578π","answer_d":"4575π","answer_correct":"D","mcurl":"annulus.php?r1=764&r2=7615&pl=Calculate"},"761":{"question":"An annulus has small radius of 764 and large radius of 765. Calculate the area.","answer_a":"1531π","answer_b":"1529π","answer_c":"1528π","answer_d":"1526π","answer_correct":"B","mcurl":"annulus.php?r1=765&r2=7645&pl=Calculate"},"762":{"question":"What is the area of an annulus with small radius of 763 and large radius of 766?","answer_a":"4585π","answer_b":"4588π","answer_c":"4587π","answer_d":"4584π","answer_correct":"C","mcurl":"annulus.php?r1=766&r2=7635&pl=Calculate"},"763":{"question":"What is the area of an annulus with small radius of 764 and large radius of 767?","answer_a":"4594π","answer_b":"4593π","answer_c":"4596π","answer_d":"4591π","answer_correct":"B","mcurl":"annulus.php?r1=767&r2=7645&pl=Calculate"},"764":{"question":"What is the area of an annulus with small radius of 765 and large radius of 768?","answer_a":"4600π","answer_b":"4597π","answer_c":"4596π","answer_d":"4599π","answer_correct":"D","mcurl":"annulus.php?r1=768&r2=7655&pl=Calculate"},"765":{"question":"An annulus has small radius of 768 and large radius of 769. Calculate the area.","answer_a":"1535π","answer_b":"1534π","answer_c":"1538π","answer_d":"1537π","answer_correct":"D","mcurl":"annulus.php?r1=769&r2=7685&pl=Calculate"},"766":{"question":"An annulus has small radius of 769 and large radius of 770. Calculate the area.","answer_a":"1541π","answer_b":"1538π","answer_c":"1536π","answer_d":"1539π","answer_correct":"D","mcurl":"annulus.php?r1=770&r2=7695&pl=Calculate"},"767":{"question":"An annulus has small radius of 769 and large radius of 771. Calculate the area.","answer_a":"3081π","answer_b":"3083π","answer_c":"3082π","answer_d":"3080π","answer_correct":"D","mcurl":"annulus.php?r1=771&r2=7695&pl=Calculate"},"768":{"question":"What is the area of an annulus with small radius of 771 and large radius of 772?","answer_a":"1543π","answer_b":"1544π","answer_c":"1540π","answer_d":"1545π","answer_correct":"A","mcurl":"annulus.php?r1=772&r2=7715&pl=Calculate"},"769":{"question":"An annulus has small radius of 770 and large radius of 773. Calculate the area.","answer_a":"4628π","answer_b":"4631π","answer_c":"4632π","answer_d":"4629π","answer_correct":"D","mcurl":"annulus.php?r1=773&r2=7705&pl=Calculate"},"770":{"question":"What is the area of an annulus with small radius of 772 and large radius of 774?","answer_a":"3092π","answer_b":"3089π","answer_c":"3093π","answer_d":"3094π","answer_correct":"A","mcurl":"annulus.php?r1=774&r2=7725&pl=Calculate"},"771":{"question":"An annulus has small radius of 774 and large radius of 775. Calculate the area.","answer_a":"1548π","answer_b":"1547π","answer_c":"1549π","answer_d":"1546π","answer_correct":"C","mcurl":"annulus.php?r1=775&r2=7745&pl=Calculate"},"772":{"question":"What is the area of an annulus with small radius of 775 and large radius of 776?","answer_a":"1549π","answer_b":"1548π","answer_c":"1551π","answer_d":"1552π","answer_correct":"C","mcurl":"annulus.php?r1=776&r2=7755&pl=Calculate"},"773":{"question":"What is the area of an annulus with small radius of 775 and large radius of 777?","answer_a":"3104π","answer_b":"3103π","answer_c":"3107π","answer_d":"3102π","answer_correct":"A","mcurl":"annulus.php?r1=777&r2=7755&pl=Calculate"},"774":{"question":"An annulus has small radius of 774 and large radius of 778. Calculate the area.","answer_a":"6207π","answer_b":"6208π","answer_c":"6205π","answer_d":"6206π","answer_correct":"B","mcurl":"annulus.php?r1=778&r2=7745&pl=Calculate"},"775":{"question":"An annulus has small radius of 777 and large radius of 779. Calculate the area.","answer_a":"3110π","answer_b":"3113π","answer_c":"3115π","answer_d":"3112π","answer_correct":"D","mcurl":"annulus.php?r1=779&r2=7775&pl=Calculate"},"776":{"question":"An annulus has small radius of 777 and large radius of 780. Calculate the area.","answer_a":"4673π","answer_b":"4672π","answer_c":"4671π","answer_d":"4674π","answer_correct":"C","mcurl":"annulus.php?r1=780&r2=7775&pl=Calculate"},"777":{"question":"An annulus has small radius of 779 and large radius of 781. Calculate the area.","answer_a":"3123π","answer_b":"3121π","answer_c":"3120π","answer_d":"3118π","answer_correct":"C","mcurl":"annulus.php?r1=781&r2=7795&pl=Calculate"},"778":{"question":"What is the area of an annulus with small radius of 781 and large radius of 782?","answer_a":"1566π","answer_b":"1565π","answer_c":"1564π","answer_d":"1563π","answer_correct":"D","mcurl":"annulus.php?r1=782&r2=7815&pl=Calculate"},"779":{"question":"An annulus has small radius of 780 and large radius of 783. Calculate the area.","answer_a":"4686π","answer_b":"4687π","answer_c":"4690π","answer_d":"4689π","answer_correct":"D","mcurl":"annulus.php?r1=783&r2=7805&pl=Calculate"},"780":{"question":"An annulus has small radius of 780 and large radius of 784. Calculate the area.","answer_a":"6259π","answer_b":"6256π","answer_c":"6254π","answer_d":"6255π","answer_correct":"B","mcurl":"annulus.php?r1=784&r2=7805&pl=Calculate"},"781":{"question":"An annulus has small radius of 784 and large radius of 785. Calculate the area.","answer_a":"1569π","answer_b":"1571π","answer_c":"1570π","answer_d":"1572π","answer_correct":"A","mcurl":"annulus.php?r1=785&r2=7845&pl=Calculate"},"782":{"question":"An annulus has small radius of 782 and large radius of 786. Calculate the area.","answer_a":"6272π","answer_b":"6270π","answer_c":"6275π","answer_d":"6271π","answer_correct":"A","mcurl":"annulus.php?r1=786&r2=7825&pl=Calculate"},"783":{"question":"What is the area of an annulus with small radius of 786 and large radius of 787?","answer_a":"1574π","answer_b":"1573π","answer_c":"1570π","answer_d":"1575π","answer_correct":"B","mcurl":"annulus.php?r1=787&r2=7865&pl=Calculate"},"784":{"question":"An annulus has small radius of 787 and large radius of 788. Calculate the area.","answer_a":"1574π","answer_b":"1577π","answer_c":"1575π","answer_d":"1572π","answer_correct":"C","mcurl":"annulus.php?r1=788&r2=7875&pl=Calculate"},"785":{"question":"An annulus has small radius of 787 and large radius of 789. Calculate the area.","answer_a":"3152π","answer_b":"3150π","answer_c":"3153π","answer_d":"3155π","answer_correct":"A","mcurl":"annulus.php?r1=789&r2=7875&pl=Calculate"},"786":{"question":"What is the area of an annulus with small radius of 789 and large radius of 790?","answer_a":"1582π","answer_b":"1580π","answer_c":"1581π","answer_d":"1579π","answer_correct":"D","mcurl":"annulus.php?r1=790&r2=7895&pl=Calculate"},"787":{"question":"An annulus has small radius of 788 and large radius of 791. Calculate the area.","answer_a":"4740π","answer_b":"4738π","answer_c":"4735π","answer_d":"4737π","answer_correct":"D","mcurl":"annulus.php?r1=791&r2=7885&pl=Calculate"},"788":{"question":"An annulus has small radius of 788 and large radius of 792. Calculate the area.","answer_a":"6321π","answer_b":"6323π","answer_c":"6320π","answer_d":"6318π","answer_correct":"C","mcurl":"annulus.php?r1=792&r2=7885&pl=Calculate"},"789":{"question":"An annulus has small radius of 789 and large radius of 793. Calculate the area.","answer_a":"6328π","answer_b":"6325π","answer_c":"6327π","answer_d":"6326π","answer_correct":"A","mcurl":"annulus.php?r1=793&r2=7895&pl=Calculate"},"790":{"question":"An annulus has small radius of 791 and large radius of 794. Calculate the area.","answer_a":"4755π","answer_b":"4752π","answer_c":"4756π","answer_d":"4753π","answer_correct":"A","mcurl":"annulus.php?r1=794&r2=7915&pl=Calculate"},"791":{"question":"An annulus has small radius of 794 and large radius of 795. Calculate the area.","answer_a":"1591π","answer_b":"1588π","answer_c":"1589π","answer_d":"1586π","answer_correct":"C","mcurl":"annulus.php?r1=795&r2=7945&pl=Calculate"},"792":{"question":"What is the area of an annulus with small radius of 792 and large radius of 796?","answer_a":"6349π","answer_b":"6354π","answer_c":"6353π","answer_d":"6352π","answer_correct":"D","mcurl":"annulus.php?r1=796&r2=7925&pl=Calculate"},"793":{"question":"An annulus has small radius of 795 and large radius of 797. Calculate the area.","answer_a":"3185π","answer_b":"3187π","answer_c":"3184π","answer_d":"3186π","answer_correct":"C","mcurl":"annulus.php?r1=797&r2=7955&pl=Calculate"},"794":{"question":"An annulus has small radius of 796 and large radius of 798. Calculate the area.","answer_a":"3186π","answer_b":"3187π","answer_c":"3191π","answer_d":"3188π","answer_correct":"D","mcurl":"annulus.php?r1=798&r2=7965&pl=Calculate"},"795":{"question":"An annulus has small radius of 798 and large radius of 799. Calculate the area.","answer_a":"1598π","answer_b":"1597π","answer_c":"1600π","answer_d":"1599π","answer_correct":"B","mcurl":"annulus.php?r1=799&r2=7985&pl=Calculate"},"796":{"question":"An annulus has small radius of 798 and large radius of 800. Calculate the area.","answer_a":"3199π","answer_b":"3197π","answer_c":"3198π","answer_d":"3196π","answer_correct":"D","mcurl":"annulus.php?r1=800&r2=7985&pl=Calculate"},"797":{"question":"What is the area of an annulus with small radius of 798 and large radius of 801?","answer_a":"4798π","answer_b":"4797π","answer_c":"4799π","answer_d":"4800π","answer_correct":"B","mcurl":"annulus.php?r1=801&r2=7985&pl=Calculate"},"798":{"question":"What is the area of an annulus with small radius of 801 and large radius of 802?","answer_a":"1603π","answer_b":"1600π","answer_c":"1604π","answer_d":"1605π","answer_correct":"A","mcurl":"annulus.php?r1=802&r2=8015&pl=Calculate"},"799":{"question":"An annulus has small radius of 800 and large radius of 803. Calculate the area.","answer_a":"4808π","answer_b":"4809π","answer_c":"4806π","answer_d":"4807π","answer_correct":"B","mcurl":"annulus.php?r1=803&r2=8005&pl=Calculate"},"800":{"question":"What is the area of an annulus with small radius of 801 and large radius of 804?","answer_a":"4814π","answer_b":"4818π","answer_c":"4813π","answer_d":"4815π","answer_correct":"D","mcurl":"annulus.php?r1=804&r2=8015&pl=Calculate"},"801":{"question":"What is the area of an annulus with small radius of 803 and large radius of 805?","answer_a":"3213π","answer_b":"3218π","answer_c":"3216π","answer_d":"3215π","answer_correct":"C","mcurl":"annulus.php?r1=805&r2=8035&pl=Calculate"},"802":{"question":"An annulus has small radius of 803 and large radius of 806. Calculate the area.","answer_a":"4828π","answer_b":"4824π","answer_c":"4827π","answer_d":"4829π","answer_correct":"C","mcurl":"annulus.php?r1=806&r2=8035&pl=Calculate"},"803":{"question":"An annulus has small radius of 806 and large radius of 807. Calculate the area.","answer_a":"1615π","answer_b":"1612π","answer_c":"1613π","answer_d":"1610π","answer_correct":"C","mcurl":"annulus.php?r1=807&r2=8065&pl=Calculate"},"804":{"question":"An annulus has small radius of 805 and large radius of 808. Calculate the area.","answer_a":"4840π","answer_b":"4837π","answer_c":"4839π","answer_d":"4836π","answer_correct":"C","mcurl":"annulus.php?r1=808&r2=8055&pl=Calculate"},"805":{"question":"What is the area of an annulus with small radius of 807 and large radius of 809?","answer_a":"3232π","answer_b":"3231π","answer_c":"3234π","answer_d":"3229π","answer_correct":"A","mcurl":"annulus.php?r1=809&r2=8075&pl=Calculate"},"806":{"question":"An annulus has small radius of 807 and large radius of 810. Calculate the area.","answer_a":"4851π","answer_b":"4850π","answer_c":"4848π","answer_d":"4853π","answer_correct":"A","mcurl":"annulus.php?r1=810&r2=8075&pl=Calculate"},"807":{"question":"What is the area of an annulus with small radius of 807 and large radius of 811?","answer_a":"6473π","answer_b":"6470π","answer_c":"6472π","answer_d":"6469π","answer_correct":"C","mcurl":"annulus.php?r1=811&r2=8075&pl=Calculate"},"808":{"question":"An annulus has small radius of 811 and large radius of 812. Calculate the area.","answer_a":"1623π","answer_b":"1624π","answer_c":"1625π","answer_d":"1626π","answer_correct":"A","mcurl":"annulus.php?r1=812&r2=8115&pl=Calculate"},"809":{"question":"What is the area of an annulus with small radius of 812 and large radius of 813?","answer_a":"1626π","answer_b":"1627π","answer_c":"1628π","answer_d":"1625π","answer_correct":"D","mcurl":"annulus.php?r1=813&r2=8125&pl=Calculate"},"810":{"question":"What is the area of an annulus with small radius of 813 and large radius of 814?","answer_a":"1627π","answer_b":"1630π","answer_c":"1625π","answer_d":"1626π","answer_correct":"A","mcurl":"annulus.php?r1=814&r2=8135&pl=Calculate"},"811":{"question":"An annulus has small radius of 812 and large radius of 815. Calculate the area.","answer_a":"4879π","answer_b":"4878π","answer_c":"4881π","answer_d":"4880π","answer_correct":"C","mcurl":"annulus.php?r1=815&r2=8125&pl=Calculate"},"812":{"question":"An annulus has small radius of 813 and large radius of 816. Calculate the area.","answer_a":"4889π","answer_b":"4888π","answer_c":"4890π","answer_d":"4887π","answer_correct":"D","mcurl":"annulus.php?r1=816&r2=8135&pl=Calculate"},"813":{"question":"What is the area of an annulus with small radius of 813 and large radius of 817?","answer_a":"6519π","answer_b":"6518π","answer_c":"6520π","answer_d":"6517π","answer_correct":"C","mcurl":"annulus.php?r1=817&r2=8135&pl=Calculate"},"814":{"question":"An annulus has small radius of 814 and large radius of 818. Calculate the area.","answer_a":"6526π","answer_b":"6531π","answer_c":"6527π","answer_d":"6528π","answer_correct":"D","mcurl":"annulus.php?r1=818&r2=8145&pl=Calculate"},"815":{"question":"What is the area of an annulus with small radius of 816 and large radius of 819?","answer_a":"4907π","answer_b":"4908π","answer_c":"4905π","answer_d":"4906π","answer_correct":"C","mcurl":"annulus.php?r1=819&r2=8165&pl=Calculate"},"816":{"question":"What is the area of an annulus with small radius of 819 and large radius of 820?","answer_a":"1639π","answer_b":"1636π","answer_c":"1637π","answer_d":"1640π","answer_correct":"A","mcurl":"annulus.php?r1=820&r2=8195&pl=Calculate"},"817":{"question":"An annulus has small radius of 819 and large radius of 821. Calculate the area.","answer_a":"3278π","answer_b":"3280π","answer_c":"3283π","answer_d":"3279π","answer_correct":"B","mcurl":"annulus.php?r1=821&r2=8195&pl=Calculate"},"818":{"question":"What is the area of an annulus with small radius of 818 and large radius of 822?","answer_a":"6559π","answer_b":"6563π","answer_c":"6560π","answer_d":"6558π","answer_correct":"C","mcurl":"annulus.php?r1=822&r2=8185&pl=Calculate"},"819":{"question":"An annulus has small radius of 822 and large radius of 823. Calculate the area.","answer_a":"1645π","answer_b":"1648π","answer_c":"1643π","answer_d":"1646π","answer_correct":"A","mcurl":"annulus.php?r1=823&r2=8225&pl=Calculate"},"820":{"question":"An annulus has small radius of 822 and large radius of 824. Calculate the area.","answer_a":"3292π","answer_b":"3290π","answer_c":"3295π","answer_d":"3291π","answer_correct":"A","mcurl":"annulus.php?r1=824&r2=8225&pl=Calculate"},"821":{"question":"An annulus has small radius of 822 and large radius of 825. Calculate the area.","answer_a":"4943π","answer_b":"4942π","answer_c":"4941π","answer_d":"4944π","answer_correct":"C","mcurl":"annulus.php?r1=825&r2=8225&pl=Calculate"},"822":{"question":"An annulus has small radius of 822 and large radius of 826. Calculate the area.","answer_a":"6591π","answer_b":"6589π","answer_c":"6594π","answer_d":"6592π","answer_correct":"D","mcurl":"annulus.php?r1=826&r2=8225&pl=Calculate"},"823":{"question":"An annulus has small radius of 826 and large radius of 827. Calculate the area.","answer_a":"1656π","answer_b":"1655π","answer_c":"1653π","answer_d":"1652π","answer_correct":"C","mcurl":"annulus.php?r1=827&r2=8265&pl=Calculate"},"824":{"question":"An annulus has small radius of 824 and large radius of 828. Calculate the area.","answer_a":"6608π","answer_b":"6610π","answer_c":"6607π","answer_d":"6611π","answer_correct":"A","mcurl":"annulus.php?r1=828&r2=8245&pl=Calculate"},"825":{"question":"An annulus has small radius of 827 and large radius of 829. Calculate the area.","answer_a":"3311π","answer_b":"3309π","answer_c":"3310π","answer_d":"3312π","answer_correct":"D","mcurl":"annulus.php?r1=829&r2=8275&pl=Calculate"},"826":{"question":"An annulus has small radius of 827 and large radius of 830. Calculate the area.","answer_a":"4971π","answer_b":"4968π","answer_c":"4972π","answer_d":"4973π","answer_correct":"A","mcurl":"annulus.php?r1=830&r2=8275&pl=Calculate"},"827":{"question":"An annulus has small radius of 828 and large radius of 831. Calculate the area.","answer_a":"4978π","answer_b":"4975π","answer_c":"4980π","answer_d":"4977π","answer_correct":"D","mcurl":"annulus.php?r1=831&r2=8285&pl=Calculate"},"828":{"question":"What is the area of an annulus with small radius of 831 and large radius of 832?","answer_a":"1661π","answer_b":"1663π","answer_c":"1664π","answer_d":"1666π","answer_correct":"B","mcurl":"annulus.php?r1=832&r2=8315&pl=Calculate"},"829":{"question":"An annulus has small radius of 831 and large radius of 833. Calculate the area.","answer_a":"3329π","answer_b":"3331π","answer_c":"3326π","answer_d":"3328π","answer_correct":"D","mcurl":"annulus.php?r1=833&r2=8315&pl=Calculate"},"830":{"question":"What is the area of an annulus with small radius of 832 and large radius of 834?","answer_a":"3332π","answer_b":"3329π","answer_c":"3330π","answer_d":"3333π","answer_correct":"A","mcurl":"annulus.php?r1=834&r2=8325&pl=Calculate"},"831":{"question":"An annulus has small radius of 832 and large radius of 835. Calculate the area.","answer_a":"5004π","answer_b":"4999π","answer_c":"5002π","answer_d":"5001π","answer_correct":"D","mcurl":"annulus.php?r1=835&r2=8325&pl=Calculate"},"832":{"question":"An annulus has small radius of 832 and large radius of 836. Calculate the area.","answer_a":"6675π","answer_b":"6672π","answer_c":"6674π","answer_d":"6671π","answer_correct":"B","mcurl":"annulus.php?r1=836&r2=8325&pl=Calculate"},"833":{"question":"An annulus has small radius of 836 and large radius of 837. Calculate the area.","answer_a":"1673π","answer_b":"1670π","answer_c":"1674π","answer_d":"1671π","answer_correct":"A","mcurl":"annulus.php?r1=837&r2=8365&pl=Calculate"},"834":{"question":"An annulus has small radius of 837 and large radius of 838. Calculate the area.","answer_a":"1677π","answer_b":"1676π","answer_c":"1678π","answer_d":"1675π","answer_correct":"D","mcurl":"annulus.php?r1=838&r2=8375&pl=Calculate"},"835":{"question":"An annulus has small radius of 835 and large radius of 839. Calculate the area.","answer_a":"6696π","answer_b":"6695π","answer_c":"6694π","answer_d":"6699π","answer_correct":"A","mcurl":"annulus.php?r1=839&r2=8355&pl=Calculate"},"836":{"question":"An annulus has small radius of 837 and large radius of 840. Calculate the area.","answer_a":"5028π","answer_b":"5029π","answer_c":"5030π","answer_d":"5031π","answer_correct":"D","mcurl":"annulus.php?r1=840&r2=8375&pl=Calculate"},"837":{"question":"What is the area of an annulus with small radius of 837 and large radius of 841?","answer_a":"6712π","answer_b":"6714π","answer_c":"6715π","answer_d":"6713π","answer_correct":"A","mcurl":"annulus.php?r1=841&r2=8375&pl=Calculate"},"838":{"question":"An annulus has small radius of 839 and large radius of 842. Calculate the area.","answer_a":"5045π","answer_b":"5044π","answer_c":"5040π","answer_d":"5043π","answer_correct":"D","mcurl":"annulus.php?r1=842&r2=8395&pl=Calculate"},"839":{"question":"What is the area of an annulus with small radius of 840 and large radius of 843?","answer_a":"5052π","answer_b":"5049π","answer_c":"5050π","answer_d":"5047π","answer_correct":"B","mcurl":"annulus.php?r1=843&r2=8405&pl=Calculate"},"840":{"question":"An annulus has small radius of 842 and large radius of 844. Calculate the area.","answer_a":"3372π","answer_b":"3371π","answer_c":"3370π","answer_d":"3375π","answer_correct":"A","mcurl":"annulus.php?r1=844&r2=8425&pl=Calculate"},"841":{"question":"An annulus has small radius of 842 and large radius of 845. Calculate the area.","answer_a":"5060π","answer_b":"5058π","answer_c":"5061π","answer_d":"5063π","answer_correct":"C","mcurl":"annulus.php?r1=845&r2=8425&pl=Calculate"},"842":{"question":"An annulus has small radius of 845 and large radius of 846. Calculate the area.","answer_a":"1692π","answer_b":"1691π","answer_c":"1689π","answer_d":"1694π","answer_correct":"B","mcurl":"annulus.php?r1=846&r2=8455&pl=Calculate"},"843":{"question":"An annulus has small radius of 843 and large radius of 847. Calculate the area.","answer_a":"6760π","answer_b":"6761π","answer_c":"6757π","answer_d":"6758π","answer_correct":"A","mcurl":"annulus.php?r1=847&r2=8435&pl=Calculate"},"844":{"question":"An annulus has small radius of 847 and large radius of 848. Calculate the area.","answer_a":"1697π","answer_b":"1698π","answer_c":"1695π","answer_d":"1694π","answer_correct":"C","mcurl":"annulus.php?r1=848&r2=8475&pl=Calculate"},"845":{"question":"What is the area of an annulus with small radius of 845 and large radius of 849?","answer_a":"6775π","answer_b":"6779π","answer_c":"6778π","answer_d":"6776π","answer_correct":"D","mcurl":"annulus.php?r1=849&r2=8455&pl=Calculate"},"846":{"question":"What is the area of an annulus with small radius of 849 and large radius of 850?","answer_a":"1697π","answer_b":"1702π","answer_c":"1700π","answer_d":"1699π","answer_correct":"D","mcurl":"annulus.php?r1=850&r2=8495&pl=Calculate"},"847":{"question":"What is the area of an annulus with small radius of 850 and large radius of 851?","answer_a":"1698π","answer_b":"1700π","answer_c":"1699π","answer_d":"1701π","answer_correct":"D","mcurl":"annulus.php?r1=851&r2=8505&pl=Calculate"},"848":{"question":"What is the area of an annulus with small radius of 849 and large radius of 852?","answer_a":"5105π","answer_b":"5103π","answer_c":"5104π","answer_d":"5106π","answer_correct":"B","mcurl":"annulus.php?r1=852&r2=8495&pl=Calculate"},"849":{"question":"An annulus has small radius of 851 and large radius of 853. Calculate the area.","answer_a":"3408π","answer_b":"3405π","answer_c":"3409π","answer_d":"3406π","answer_correct":"A","mcurl":"annulus.php?r1=853&r2=8515&pl=Calculate"},"850":{"question":"An annulus has small radius of 850 and large radius of 854. Calculate the area.","answer_a":"6818π","answer_b":"6813π","answer_c":"6816π","answer_d":"6815π","answer_correct":"C","mcurl":"annulus.php?r1=854&r2=8505&pl=Calculate"},"851":{"question":"An annulus has small radius of 854 and large radius of 855. Calculate the area.","answer_a":"1710π","answer_b":"1707π","answer_c":"1706π","answer_d":"1709π","answer_correct":"D","mcurl":"annulus.php?r1=855&r2=8545&pl=Calculate"},"852":{"question":"What is the area of an annulus with small radius of 854 and large radius of 856?","answer_a":"3418π","answer_b":"3423π","answer_c":"3421π","answer_d":"3420π","answer_correct":"D","mcurl":"annulus.php?r1=856&r2=8545&pl=Calculate"},"853":{"question":"An annulus has small radius of 853 and large radius of 857. Calculate the area.","answer_a":"6839π","answer_b":"6837π","answer_c":"6840π","answer_d":"6842π","answer_correct":"C","mcurl":"annulus.php?r1=857&r2=8535&pl=Calculate"},"854":{"question":"An annulus has small radius of 854 and large radius of 858. Calculate the area.","answer_a":"6848π","answer_b":"6846π","answer_c":"6849π","answer_d":"6851π","answer_correct":"A","mcurl":"annulus.php?r1=858&r2=8545&pl=Calculate"},"855":{"question":"What is the area of an annulus with small radius of 856 and large radius of 859?","answer_a":"5144π","answer_b":"5142π","answer_c":"5145π","answer_d":"5147π","answer_correct":"C","mcurl":"annulus.php?r1=859&r2=8565&pl=Calculate"},"856":{"question":"An annulus has small radius of 859 and large radius of 860. Calculate the area.","answer_a":"1719π","answer_b":"1720π","answer_c":"1717π","answer_d":"1716π","answer_correct":"A","mcurl":"annulus.php?r1=860&r2=8595&pl=Calculate"},"857":{"question":"What is the area of an annulus with small radius of 858 and large radius of 861?","answer_a":"5154π","answer_b":"5157π","answer_c":"5159π","answer_d":"5158π","answer_correct":"B","mcurl":"annulus.php?r1=861&r2=8585&pl=Calculate"},"858":{"question":"An annulus has small radius of 860 and large radius of 862. Calculate the area.","answer_a":"3445π","answer_b":"3444π","answer_c":"3441π","answer_d":"3442π","answer_correct":"B","mcurl":"annulus.php?r1=862&r2=8605&pl=Calculate"},"859":{"question":"An annulus has small radius of 859 and large radius of 863. Calculate the area.","answer_a":"6891π","answer_b":"6888π","answer_c":"6887π","answer_d":"6886π","answer_correct":"B","mcurl":"annulus.php?r1=863&r2=8595&pl=Calculate"},"860":{"question":"An annulus has small radius of 860 and large radius of 864. Calculate the area.","answer_a":"6899π","answer_b":"6895π","answer_c":"6896π","answer_d":"6894π","answer_correct":"C","mcurl":"annulus.php?r1=864&r2=8605&pl=Calculate"},"861":{"question":"An annulus has small radius of 864 and large radius of 865. Calculate the area.","answer_a":"1727π","answer_b":"1728π","answer_c":"1732π","answer_d":"1729π","answer_correct":"D","mcurl":"annulus.php?r1=865&r2=8645&pl=Calculate"},"862":{"question":"What is the area of an annulus with small radius of 863 and large radius of 866?","answer_a":"5185π","answer_b":"5186π","answer_c":"5184π","answer_d":"5187π","answer_correct":"D","mcurl":"annulus.php?r1=866&r2=8635&pl=Calculate"},"863":{"question":"An annulus has small radius of 866 and large radius of 867. Calculate the area.","answer_a":"1733π","answer_b":"1730π","answer_c":"1735π","answer_d":"1734π","answer_correct":"A","mcurl":"annulus.php?r1=867&r2=8665&pl=Calculate"},"864":{"question":"What is the area of an annulus with small radius of 866 and large radius of 868?","answer_a":"3471π","answer_b":"3466π","answer_c":"3468π","answer_d":"3469π","answer_correct":"C","mcurl":"annulus.php?r1=868&r2=8665&pl=Calculate"},"865":{"question":"What is the area of an annulus with small radius of 868 and large radius of 869?","answer_a":"1736π","answer_b":"1734π","answer_c":"1739π","answer_d":"1737π","answer_correct":"D","mcurl":"annulus.php?r1=869&r2=8685&pl=Calculate"},"866":{"question":"An annulus has small radius of 866 and large radius of 870. Calculate the area.","answer_a":"6946π","answer_b":"6941π","answer_c":"6944π","answer_d":"6943π","answer_correct":"C","mcurl":"annulus.php?r1=870&r2=8665&pl=Calculate"},"867":{"question":"What is the area of an annulus with small radius of 869 and large radius of 871?","answer_a":"3480π","answer_b":"3478π","answer_c":"3477π","answer_d":"3481π","answer_correct":"A","mcurl":"annulus.php?r1=871&r2=8695&pl=Calculate"},"868":{"question":"What is the area of an annulus with small radius of 871 and large radius of 872?","answer_a":"1746π","answer_b":"1743π","answer_c":"1744π","answer_d":"1741π","answer_correct":"B","mcurl":"annulus.php?r1=872&r2=8715&pl=Calculate"},"869":{"question":"What is the area of an annulus with small radius of 872 and large radius of 873?","answer_a":"1745π","answer_b":"1748π","answer_c":"1743π","answer_d":"1746π","answer_correct":"A","mcurl":"annulus.php?r1=873&r2=8725&pl=Calculate"},"870":{"question":"An annulus has small radius of 870 and large radius of 874. Calculate the area.","answer_a":"6974π","answer_b":"6973π","answer_c":"6975π","answer_d":"6976π","answer_correct":"D","mcurl":"annulus.php?r1=874&r2=8705&pl=Calculate"},"871":{"question":"What is the area of an annulus with small radius of 872 and large radius of 875?","answer_a":"5241π","answer_b":"5238π","answer_c":"5242π","answer_d":"5243π","answer_correct":"A","mcurl":"annulus.php?r1=875&r2=8725&pl=Calculate"},"872":{"question":"What is the area of an annulus with small radius of 874 and large radius of 876?","answer_a":"3498π","answer_b":"3497π","answer_c":"3499π","answer_d":"3500π","answer_correct":"D","mcurl":"annulus.php?r1=876&r2=8745&pl=Calculate"},"873":{"question":"What is the area of an annulus with small radius of 876 and large radius of 877?","answer_a":"1750π","answer_b":"1755π","answer_c":"1753π","answer_d":"1754π","answer_correct":"C","mcurl":"annulus.php?r1=877&r2=8765&pl=Calculate"},"874":{"question":"What is the area of an annulus with small radius of 875 and large radius of 878?","answer_a":"5259π","answer_b":"5257π","answer_c":"5256π","answer_d":"5258π","answer_correct":"A","mcurl":"annulus.php?r1=878&r2=8755&pl=Calculate"},"875":{"question":"What is the area of an annulus with small radius of 876 and large radius of 879?","answer_a":"5265π","answer_b":"5262π","answer_c":"5264π","answer_d":"5263π","answer_correct":"A","mcurl":"annulus.php?r1=879&r2=8765&pl=Calculate"},"876":{"question":"An annulus has small radius of 876 and large radius of 880. Calculate the area.","answer_a":"7027π","answer_b":"7024π","answer_c":"7026π","answer_d":"7023π","answer_correct":"B","mcurl":"annulus.php?r1=880&r2=8765&pl=Calculate"},"877":{"question":"What is the area of an annulus with small radius of 878 and large radius of 881?","answer_a":"5275π","answer_b":"5274π","answer_c":"5277π","answer_d":"5278π","answer_correct":"C","mcurl":"annulus.php?r1=881&r2=8785&pl=Calculate"},"878":{"question":"What is the area of an annulus with small radius of 881 and large radius of 882?","answer_a":"1764π","answer_b":"1760π","answer_c":"1763π","answer_d":"1761π","answer_correct":"C","mcurl":"annulus.php?r1=882&r2=8815&pl=Calculate"},"879":{"question":"What is the area of an annulus with small radius of 881 and large radius of 883?","answer_a":"3528π","answer_b":"3525π","answer_c":"3529π","answer_d":"3530π","answer_correct":"A","mcurl":"annulus.php?r1=883&r2=8815&pl=Calculate"},"880":{"question":"What is the area of an annulus with small radius of 880 and large radius of 884?","answer_a":"7059π","answer_b":"7056π","answer_c":"7057π","answer_d":"7058π","answer_correct":"B","mcurl":"annulus.php?r1=884&r2=8805&pl=Calculate"},"881":{"question":"What is the area of an annulus with small radius of 881 and large radius of 885?","answer_a":"7062π","answer_b":"7064π","answer_c":"7061π","answer_d":"7063π","answer_correct":"B","mcurl":"annulus.php?r1=885&r2=8815&pl=Calculate"},"882":{"question":"An annulus has small radius of 882 and large radius of 886. Calculate the area.","answer_a":"7069π","answer_b":"7074π","answer_c":"7072π","answer_d":"7073π","answer_correct":"C","mcurl":"annulus.php?r1=886&r2=8825&pl=Calculate"},"883":{"question":"An annulus has small radius of 886 and large radius of 887. Calculate the area.","answer_a":"1772π","answer_b":"1773π","answer_c":"1770π","answer_d":"1775π","answer_correct":"B","mcurl":"annulus.php?r1=887&r2=8865&pl=Calculate"},"884":{"question":"An annulus has small radius of 886 and large radius of 888. Calculate the area.","answer_a":"3551π","answer_b":"3547π","answer_c":"3548π","answer_d":"3546π","answer_correct":"C","mcurl":"annulus.php?r1=888&r2=8865&pl=Calculate"},"885":{"question":"What is the area of an annulus with small radius of 888 and large radius of 889?","answer_a":"1778π","answer_b":"1779π","answer_c":"1774π","answer_d":"1777π","answer_correct":"D","mcurl":"annulus.php?r1=889&r2=8885&pl=Calculate"},"886":{"question":"An annulus has small radius of 888 and large radius of 890. Calculate the area.","answer_a":"3553π","answer_b":"3555π","answer_c":"3554π","answer_d":"3556π","answer_correct":"D","mcurl":"annulus.php?r1=890&r2=8885&pl=Calculate"},"887":{"question":"An annulus has small radius of 887 and large radius of 891. Calculate the area.","answer_a":"7115π","answer_b":"7112π","answer_c":"7111π","answer_d":"7110π","answer_correct":"B","mcurl":"annulus.php?r1=891&r2=8875&pl=Calculate"},"888":{"question":"An annulus has small radius of 889 and large radius of 892. Calculate the area.","answer_a":"5341π","answer_b":"5343π","answer_c":"5342π","answer_d":"5346π","answer_correct":"B","mcurl":"annulus.php?r1=892&r2=8895&pl=Calculate"},"889":{"question":"What is the area of an annulus with small radius of 892 and large radius of 893?","answer_a":"1785π","answer_b":"1788π","answer_c":"1783π","answer_d":"1784π","answer_correct":"A","mcurl":"annulus.php?r1=893&r2=8925&pl=Calculate"},"890":{"question":"An annulus has small radius of 893 and large radius of 894. Calculate the area.","answer_a":"1789π","answer_b":"1787π","answer_c":"1784π","answer_d":"1788π","answer_correct":"B","mcurl":"annulus.php?r1=894&r2=8935&pl=Calculate"},"891":{"question":"An annulus has small radius of 893 and large radius of 895. Calculate the area.","answer_a":"3574π","answer_b":"3575π","answer_c":"3573π","answer_d":"3576π","answer_correct":"D","mcurl":"annulus.php?r1=895&r2=8935&pl=Calculate"},"892":{"question":"What is the area of an annulus with small radius of 894 and large radius of 896?","answer_a":"3583π","answer_b":"3580π","answer_c":"3582π","answer_d":"3581π","answer_correct":"B","mcurl":"annulus.php?r1=896&r2=8945&pl=Calculate"},"893":{"question":"What is the area of an annulus with small radius of 893 and large radius of 897?","answer_a":"7157π","answer_b":"7160π","answer_c":"7161π","answer_d":"7162π","answer_correct":"B","mcurl":"annulus.php?r1=897&r2=8935&pl=Calculate"},"894":{"question":"What is the area of an annulus with small radius of 897 and large radius of 898?","answer_a":"1792π","answer_b":"1795π","answer_c":"1794π","answer_d":"1793π","answer_correct":"B","mcurl":"annulus.php?r1=898&r2=8975&pl=Calculate"},"895":{"question":"What is the area of an annulus with small radius of 898 and large radius of 899?","answer_a":"1798π","answer_b":"1800π","answer_c":"1795π","answer_d":"1797π","answer_correct":"D","mcurl":"annulus.php?r1=899&r2=8985&pl=Calculate"},"896":{"question":"An annulus has small radius of 898 and large radius of 900. Calculate the area.","answer_a":"3598π","answer_b":"3597π","answer_c":"3596π","answer_d":"3593π","answer_correct":"C","mcurl":"annulus.php?r1=900&r2=8985&pl=Calculate"},"897":{"question":"What is the area of an annulus with small radius of 899 and large radius of 901?","answer_a":"3598π","answer_b":"3600π","answer_c":"3601π","answer_d":"3597π","answer_correct":"B","mcurl":"annulus.php?r1=901&r2=8995&pl=Calculate"},"898":{"question":"What is the area of an annulus with small radius of 901 and large radius of 902?","answer_a":"1805π","answer_b":"1804π","answer_c":"1803π","answer_d":"1806π","answer_correct":"C","mcurl":"annulus.php?r1=902&r2=9015&pl=Calculate"},"899":{"question":"An annulus has small radius of 901 and large radius of 903. Calculate the area.","answer_a":"3610π","answer_b":"3608π","answer_c":"3607π","answer_d":"3611π","answer_correct":"B","mcurl":"annulus.php?r1=903&r2=9015&pl=Calculate"},"900":{"question":"What is the area of an annulus with small radius of 900 and large radius of 904?","answer_a":"7218π","answer_b":"7216π","answer_c":"7213π","answer_d":"7217π","answer_correct":"B","mcurl":"annulus.php?r1=904&r2=9005&pl=Calculate"},"901":{"question":"What is the area of an annulus with small radius of 903 and large radius of 905?","answer_a":"3614π","answer_b":"3615π","answer_c":"3616π","answer_d":"3619π","answer_correct":"C","mcurl":"annulus.php?r1=905&r2=9035&pl=Calculate"},"902":{"question":"What is the area of an annulus with small radius of 905 and large radius of 906?","answer_a":"1809π","answer_b":"1811π","answer_c":"1810π","answer_d":"1808π","answer_correct":"B","mcurl":"annulus.php?r1=906&r2=9055&pl=Calculate"},"903":{"question":"An annulus has small radius of 903 and large radius of 907. Calculate the area.","answer_a":"7239π","answer_b":"7240π","answer_c":"7238π","answer_d":"7243π","answer_correct":"B","mcurl":"annulus.php?r1=907&r2=9035&pl=Calculate"},"904":{"question":"An annulus has small radius of 907 and large radius of 908. Calculate the area.","answer_a":"1815π","answer_b":"1816π","answer_c":"1812π","answer_d":"1813π","answer_correct":"A","mcurl":"annulus.php?r1=908&r2=9075&pl=Calculate"},"905":{"question":"What is the area of an annulus with small radius of 908 and large radius of 909?","answer_a":"1820π","answer_b":"1816π","answer_c":"1817π","answer_d":"1819π","answer_correct":"C","mcurl":"annulus.php?r1=909&r2=9085&pl=Calculate"},"906":{"question":"What is the area of an annulus with small radius of 907 and large radius of 910?","answer_a":"5448π","answer_b":"5451π","answer_c":"5452π","answer_d":"5449π","answer_correct":"B","mcurl":"annulus.php?r1=910&r2=9075&pl=Calculate"},"907":{"question":"What is the area of an annulus with small radius of 910 and large radius of 911?","answer_a":"1821π","answer_b":"1824π","answer_c":"1820π","answer_d":"1819π","answer_correct":"A","mcurl":"annulus.php?r1=911&r2=9105&pl=Calculate"},"908":{"question":"An annulus has small radius of 909 and large radius of 912. Calculate the area.","answer_a":"5463π","answer_b":"5464π","answer_c":"5460π","answer_d":"5465π","answer_correct":"A","mcurl":"annulus.php?r1=912&r2=9095&pl=Calculate"},"909":{"question":"What is the area of an annulus with small radius of 912 and large radius of 913?","answer_a":"1825π","answer_b":"1824π","answer_c":"1822π","answer_d":"1823π","answer_correct":"A","mcurl":"annulus.php?r1=913&r2=9125&pl=Calculate"},"910":{"question":"What is the area of an annulus with small radius of 913 and large radius of 914?","answer_a":"1827π","answer_b":"1824π","answer_c":"1829π","answer_d":"1828π","answer_correct":"A","mcurl":"annulus.php?r1=914&r2=9135&pl=Calculate"},"911":{"question":"An annulus has small radius of 911 and large radius of 915. Calculate the area.","answer_a":"7301π","answer_b":"7305π","answer_c":"7304π","answer_d":"7302π","answer_correct":"C","mcurl":"annulus.php?r1=915&r2=9115&pl=Calculate"},"912":{"question":"An annulus has small radius of 913 and large radius of 916. Calculate the area.","answer_a":"5489π","answer_b":"5488π","answer_c":"5484π","answer_d":"5487π","answer_correct":"D","mcurl":"annulus.php?r1=916&r2=9135&pl=Calculate"},"913":{"question":"An annulus has small radius of 913 and large radius of 917. Calculate the area.","answer_a":"7318π","answer_b":"7320π","answer_c":"7323π","answer_d":"7321π","answer_correct":"B","mcurl":"annulus.php?r1=917&r2=9135&pl=Calculate"},"914":{"question":"What is the area of an annulus with small radius of 916 and large radius of 918?","answer_a":"3668π","answer_b":"3670π","answer_c":"3671π","answer_d":"3669π","answer_correct":"A","mcurl":"annulus.php?r1=918&r2=9165&pl=Calculate"},"915":{"question":"An annulus has small radius of 918 and large radius of 919. Calculate the area.","answer_a":"1838π","answer_b":"1840π","answer_c":"1837π","answer_d":"1835π","answer_correct":"C","mcurl":"annulus.php?r1=919&r2=9185&pl=Calculate"},"916":{"question":"What is the area of an annulus with small radius of 918 and large radius of 920?","answer_a":"3679π","answer_b":"3674π","answer_c":"3677π","answer_d":"3676π","answer_correct":"D","mcurl":"annulus.php?r1=920&r2=9185&pl=Calculate"},"917":{"question":"What is the area of an annulus with small radius of 920 and large radius of 921?","answer_a":"1842π","answer_b":"1843π","answer_c":"1841π","answer_d":"1844π","answer_correct":"C","mcurl":"annulus.php?r1=921&r2=9205&pl=Calculate"},"918":{"question":"What is the area of an annulus with small radius of 921 and large radius of 922?","answer_a":"1841π","answer_b":"1846π","answer_c":"1843π","answer_d":"1842π","answer_correct":"C","mcurl":"annulus.php?r1=922&r2=9215&pl=Calculate"},"919":{"question":"What is the area of an annulus with small radius of 919 and large radius of 923?","answer_a":"7368π","answer_b":"7367π","answer_c":"7365π","answer_d":"7370π","answer_correct":"A","mcurl":"annulus.php?r1=923&r2=9195&pl=Calculate"},"920":{"question":"What is the area of an annulus with small radius of 923 and large radius of 924?","answer_a":"1849π","answer_b":"1850π","answer_c":"1847π","answer_d":"1848π","answer_correct":"C","mcurl":"annulus.php?r1=924&r2=9235&pl=Calculate"},"921":{"question":"An annulus has small radius of 924 and large radius of 925. Calculate the area.","answer_a":"1852π","answer_b":"1849π","answer_c":"1850π","answer_d":"1847π","answer_correct":"B","mcurl":"annulus.php?r1=925&r2=9245&pl=Calculate"},"922":{"question":"What is the area of an annulus with small radius of 923 and large radius of 926?","answer_a":"5549π","answer_b":"5546π","answer_c":"5547π","answer_d":"5550π","answer_correct":"C","mcurl":"annulus.php?r1=926&r2=9235&pl=Calculate"},"923":{"question":"What is the area of an annulus with small radius of 924 and large radius of 927?","answer_a":"5552π","answer_b":"5556π","answer_c":"5553π","answer_d":"5555π","answer_correct":"C","mcurl":"annulus.php?r1=927&r2=9245&pl=Calculate"},"924":{"question":"What is the area of an annulus with small radius of 924 and large radius of 928?","answer_a":"7410π","answer_b":"7407π","answer_c":"7408π","answer_d":"7405π","answer_correct":"C","mcurl":"annulus.php?r1=928&r2=9245&pl=Calculate"},"925":{"question":"An annulus has small radius of 928 and large radius of 929. Calculate the area.","answer_a":"1857π","answer_b":"1859π","answer_c":"1854π","answer_d":"1856π","answer_correct":"A","mcurl":"annulus.php?r1=929&r2=9285&pl=Calculate"},"926":{"question":"What is the area of an annulus with small radius of 927 and large radius of 930?","answer_a":"5571π","answer_b":"5569π","answer_c":"5572π","answer_d":"5568π","answer_correct":"A","mcurl":"annulus.php?r1=930&r2=9275&pl=Calculate"},"927":{"question":"An annulus has small radius of 930 and large radius of 931. Calculate the area.","answer_a":"1859π","answer_b":"1864π","answer_c":"1860π","answer_d":"1861π","answer_correct":"D","mcurl":"annulus.php?r1=931&r2=9305&pl=Calculate"},"928":{"question":"What is the area of an annulus with small radius of 929 and large radius of 932?","answer_a":"5584π","answer_b":"5580π","answer_c":"5581π","answer_d":"5583π","answer_correct":"D","mcurl":"annulus.php?r1=932&r2=9295&pl=Calculate"},"929":{"question":"What is the area of an annulus with small radius of 929 and large radius of 933?","answer_a":"7448π","answer_b":"7451π","answer_c":"7446π","answer_d":"7447π","answer_correct":"A","mcurl":"annulus.php?r1=933&r2=9295&pl=Calculate"},"930":{"question":"What is the area of an annulus with small radius of 931 and large radius of 934?","answer_a":"5597π","answer_b":"5592π","answer_c":"5594π","answer_d":"5595π","answer_correct":"D","mcurl":"annulus.php?r1=934&r2=9315&pl=Calculate"},"931":{"question":"What is the area of an annulus with small radius of 934 and large radius of 935?","answer_a":"1871π","answer_b":"1869π","answer_c":"1870π","answer_d":"1866π","answer_correct":"B","mcurl":"annulus.php?r1=935&r2=9345&pl=Calculate"},"932":{"question":"An annulus has small radius of 935 and large radius of 936. Calculate the area.","answer_a":"1871π","answer_b":"1873π","answer_c":"1872π","answer_d":"1868π","answer_correct":"A","mcurl":"annulus.php?r1=936&r2=9355&pl=Calculate"},"933":{"question":"An annulus has small radius of 936 and large radius of 937. Calculate the area.","answer_a":"1873π","answer_b":"1871π","answer_c":"1876π","answer_d":"1872π","answer_correct":"A","mcurl":"annulus.php?r1=937&r2=9365&pl=Calculate"},"934":{"question":"An annulus has small radius of 937 and large radius of 938. Calculate the area.","answer_a":"1874π","answer_b":"1873π","answer_c":"1878π","answer_d":"1875π","answer_correct":"D","mcurl":"annulus.php?r1=938&r2=9375&pl=Calculate"},"935":{"question":"What is the area of an annulus with small radius of 938 and large radius of 939?","answer_a":"1879π","answer_b":"1876π","answer_c":"1874π","answer_d":"1877π","answer_correct":"D","mcurl":"annulus.php?r1=939&r2=9385&pl=Calculate"},"936":{"question":"What is the area of an annulus with small radius of 937 and large radius of 940?","answer_a":"5632π","answer_b":"5633π","answer_c":"5631π","answer_d":"5634π","answer_correct":"C","mcurl":"annulus.php?r1=940&r2=9375&pl=Calculate"},"937":{"question":"What is the area of an annulus with small radius of 939 and large radius of 941?","answer_a":"3761π","answer_b":"3757π","answer_c":"3760π","answer_d":"3762π","answer_correct":"C","mcurl":"annulus.php?r1=941&r2=9395&pl=Calculate"},"938":{"question":"An annulus has small radius of 940 and large radius of 942. Calculate the area.","answer_a":"3765π","answer_b":"3766π","answer_c":"3764π","answer_d":"3767π","answer_correct":"C","mcurl":"annulus.php?r1=942&r2=9405&pl=Calculate"},"939":{"question":"An annulus has small radius of 941 and large radius of 943. Calculate the area.","answer_a":"3770π","answer_b":"3768π","answer_c":"3769π","answer_d":"3771π","answer_correct":"B","mcurl":"annulus.php?r1=943&r2=9415&pl=Calculate"},"940":{"question":"What is the area of an annulus with small radius of 941 and large radius of 944?","answer_a":"5657π","answer_b":"5658π","answer_c":"5655π","answer_d":"5654π","answer_correct":"C","mcurl":"annulus.php?r1=944&r2=9415&pl=Calculate"},"941":{"question":"An annulus has small radius of 941 and large radius of 945. Calculate the area.","answer_a":"7542π","answer_b":"7545π","answer_c":"7541π","answer_d":"7544π","answer_correct":"D","mcurl":"annulus.php?r1=945&r2=9415&pl=Calculate"},"942":{"question":"What is the area of an annulus with small radius of 945 and large radius of 946?","answer_a":"1891π","answer_b":"1888π","answer_c":"1889π","answer_d":"1892π","answer_correct":"A","mcurl":"annulus.php?r1=946&r2=9455&pl=Calculate"},"943":{"question":"An annulus has small radius of 943 and large radius of 947. Calculate the area.","answer_a":"7560π","answer_b":"7561π","answer_c":"7557π","answer_d":"7562π","answer_correct":"A","mcurl":"annulus.php?r1=947&r2=9435&pl=Calculate"},"944":{"question":"An annulus has small radius of 947 and large radius of 948. Calculate the area.","answer_a":"1896π","answer_b":"1898π","answer_c":"1897π","answer_d":"1895π","answer_correct":"D","mcurl":"annulus.php?r1=948&r2=9475&pl=Calculate"},"945":{"question":"What is the area of an annulus with small radius of 948 and large radius of 949?","answer_a":"1895π","answer_b":"1900π","answer_c":"1896π","answer_d":"1897π","answer_correct":"D","mcurl":"annulus.php?r1=949&r2=9485&pl=Calculate"},"946":{"question":"What is the area of an annulus with small radius of 948 and large radius of 950?","answer_a":"3795π","answer_b":"3798π","answer_c":"3796π","answer_d":"3799π","answer_correct":"C","mcurl":"annulus.php?r1=950&r2=9485&pl=Calculate"},"947":{"question":"What is the area of an annulus with small radius of 950 and large radius of 951?","answer_a":"1901π","answer_b":"1898π","answer_c":"1903π","answer_d":"1902π","answer_correct":"A","mcurl":"annulus.php?r1=951&r2=9505&pl=Calculate"},"948":{"question":"What is the area of an annulus with small radius of 951 and large radius of 952?","answer_a":"1906π","answer_b":"1905π","answer_c":"1902π","answer_d":"1903π","answer_correct":"D","mcurl":"annulus.php?r1=952&r2=9515&pl=Calculate"},"949":{"question":"What is the area of an annulus with small radius of 951 and large radius of 953?","answer_a":"3808π","answer_b":"3809π","answer_c":"3805π","answer_d":"3806π","answer_correct":"A","mcurl":"annulus.php?r1=953&r2=9515&pl=Calculate"},"950":{"question":"What is the area of an annulus with small radius of 953 and large radius of 954?","answer_a":"1907π","answer_b":"1905π","answer_c":"1910π","answer_d":"1908π","answer_correct":"A","mcurl":"annulus.php?r1=954&r2=9535&pl=Calculate"},"951":{"question":"An annulus has small radius of 953 and large radius of 955. Calculate the area.","answer_a":"3816π","answer_b":"3813π","answer_c":"3817π","answer_d":"3818π","answer_correct":"A","mcurl":"annulus.php?r1=955&r2=9535&pl=Calculate"},"952":{"question":"What is the area of an annulus with small radius of 955 and large radius of 956?","answer_a":"1912π","answer_b":"1909π","answer_c":"1914π","answer_d":"1911π","answer_correct":"D","mcurl":"annulus.php?r1=956&r2=9555&pl=Calculate"},"953":{"question":"An annulus has small radius of 956 and large radius of 957. Calculate the area.","answer_a":"1912π","answer_b":"1911π","answer_c":"1913π","answer_d":"1910π","answer_correct":"C","mcurl":"annulus.php?r1=957&r2=9565&pl=Calculate"},"954":{"question":"What is the area of an annulus with small radius of 954 and large radius of 958?","answer_a":"7647π","answer_b":"7651π","answer_c":"7646π","answer_d":"7648π","answer_correct":"D","mcurl":"annulus.php?r1=958&r2=9545&pl=Calculate"},"955":{"question":"An annulus has small radius of 955 and large radius of 959. Calculate the area.","answer_a":"7656π","answer_b":"7655π","answer_c":"7653π","answer_d":"7654π","answer_correct":"A","mcurl":"annulus.php?r1=959&r2=9555&pl=Calculate"},"956":{"question":"What is the area of an annulus with small radius of 957 and large radius of 960?","answer_a":"5754π","answer_b":"5750π","answer_c":"5753π","answer_d":"5751π","answer_correct":"D","mcurl":"annulus.php?r1=960&r2=9575&pl=Calculate"},"957":{"question":"An annulus has small radius of 957 and large radius of 961. Calculate the area.","answer_a":"7675π","answer_b":"7673π","answer_c":"7672π","answer_d":"7674π","answer_correct":"C","mcurl":"annulus.php?r1=961&r2=9575&pl=Calculate"},"958":{"question":"What is the area of an annulus with small radius of 961 and large radius of 962?","answer_a":"1924π","answer_b":"1921π","answer_c":"1923π","answer_d":"1920π","answer_correct":"C","mcurl":"annulus.php?r1=962&r2=9615&pl=Calculate"},"959":{"question":"An annulus has small radius of 962 and large radius of 963. Calculate the area.","answer_a":"1925π","answer_b":"1928π","answer_c":"1924π","answer_d":"1927π","answer_correct":"A","mcurl":"annulus.php?r1=963&r2=9625&pl=Calculate"},"960":{"question":"What is the area of an annulus with small radius of 960 and large radius of 964?","answer_a":"7698π","answer_b":"7699π","answer_c":"7696π","answer_d":"7695π","answer_correct":"C","mcurl":"annulus.php?r1=964&r2=9605&pl=Calculate"},"961":{"question":"What is the area of an annulus with small radius of 963 and large radius of 965?","answer_a":"3856π","answer_b":"3854π","answer_c":"3853π","answer_d":"3855π","answer_correct":"A","mcurl":"annulus.php?r1=965&r2=9635&pl=Calculate"},"962":{"question":"What is the area of an annulus with small radius of 964 and large radius of 966?","answer_a":"3859π","answer_b":"3862π","answer_c":"3860π","answer_d":"3857π","answer_correct":"C","mcurl":"annulus.php?r1=966&r2=9645&pl=Calculate"},"963":{"question":"An annulus has small radius of 964 and large radius of 967. Calculate the area.","answer_a":"5793π","answer_b":"5792π","answer_c":"5790π","answer_d":"5791π","answer_correct":"A","mcurl":"annulus.php?r1=967&r2=9645&pl=Calculate"},"964":{"question":"An annulus has small radius of 964 and large radius of 968. Calculate the area.","answer_a":"7726π","answer_b":"7728π","answer_c":"7729π","answer_d":"7725π","answer_correct":"B","mcurl":"annulus.php?r1=968&r2=9645&pl=Calculate"},"965":{"question":"What is the area of an annulus with small radius of 968 and large radius of 969?","answer_a":"1939π","answer_b":"1936π","answer_c":"1940π","answer_d":"1937π","answer_correct":"D","mcurl":"annulus.php?r1=969&r2=9685&pl=Calculate"},"966":{"question":"What is the area of an annulus with small radius of 967 and large radius of 970?","answer_a":"5810π","answer_b":"5808π","answer_c":"5811π","answer_d":"5813π","answer_correct":"C","mcurl":"annulus.php?r1=970&r2=9675&pl=Calculate"},"967":{"question":"An annulus has small radius of 968 and large radius of 971. Calculate the area.","answer_a":"5816π","answer_b":"5817π","answer_c":"5819π","answer_d":"5820π","answer_correct":"B","mcurl":"annulus.php?r1=971&r2=9685&pl=Calculate"},"968":{"question":"An annulus has small radius of 971 and large radius of 972. Calculate the area.","answer_a":"1944π","answer_b":"1941π","answer_c":"1943π","answer_d":"1940π","answer_correct":"C","mcurl":"annulus.php?r1=972&r2=9715&pl=Calculate"},"969":{"question":"An annulus has small radius of 969 and large radius of 973. Calculate the area.","answer_a":"7768π","answer_b":"7765π","answer_c":"7769π","answer_d":"7770π","answer_correct":"A","mcurl":"annulus.php?r1=973&r2=9695&pl=Calculate"},"970":{"question":"An annulus has small radius of 970 and large radius of 974. Calculate the area.","answer_a":"7776π","answer_b":"7773π","answer_c":"7777π","answer_d":"7778π","answer_correct":"A","mcurl":"annulus.php?r1=974&r2=9705&pl=Calculate"},"971":{"question":"What is the area of an annulus with small radius of 974 and large radius of 975?","answer_a":"1947π","answer_b":"1948π","answer_c":"1946π","answer_d":"1949π","answer_correct":"D","mcurl":"annulus.php?r1=975&r2=9745&pl=Calculate"},"972":{"question":"What is the area of an annulus with small radius of 974 and large radius of 976?","answer_a":"3903π","answer_b":"3898π","answer_c":"3899π","answer_d":"3900π","answer_correct":"D","mcurl":"annulus.php?r1=976&r2=9745&pl=Calculate"},"973":{"question":"An annulus has small radius of 975 and large radius of 977. Calculate the area.","answer_a":"3904π","answer_b":"3905π","answer_c":"3901π","answer_d":"3902π","answer_correct":"A","mcurl":"annulus.php?r1=977&r2=9755&pl=Calculate"},"974":{"question":"An annulus has small radius of 976 and large radius of 978. Calculate the area.","answer_a":"3905π","answer_b":"3908π","answer_c":"3909π","answer_d":"3910π","answer_correct":"B","mcurl":"annulus.php?r1=978&r2=9765&pl=Calculate"},"975":{"question":"What is the area of an annulus with small radius of 975 and large radius of 979?","answer_a":"7816π","answer_b":"7813π","answer_c":"7814π","answer_d":"7817π","answer_correct":"A","mcurl":"annulus.php?r1=979&r2=9755&pl=Calculate"},"976":{"question":"What is the area of an annulus with small radius of 978 and large radius of 980?","answer_a":"3914π","answer_b":"3913π","answer_c":"3917π","answer_d":"3916π","answer_correct":"D","mcurl":"annulus.php?r1=980&r2=9785&pl=Calculate"},"977":{"question":"What is the area of an annulus with small radius of 977 and large radius of 981?","answer_a":"7830π","answer_b":"7835π","answer_c":"7832π","answer_d":"7831π","answer_correct":"C","mcurl":"annulus.php?r1=981&r2=9775&pl=Calculate"},"978":{"question":"An annulus has small radius of 978 and large radius of 982. Calculate the area.","answer_a":"7843π","answer_b":"7840π","answer_c":"7842π","answer_d":"7841π","answer_correct":"B","mcurl":"annulus.php?r1=982&r2=9785&pl=Calculate"},"979":{"question":"An annulus has small radius of 979 and large radius of 983. Calculate the area.","answer_a":"7846π","answer_b":"7847π","answer_c":"7851π","answer_d":"7848π","answer_correct":"D","mcurl":"annulus.php?r1=983&r2=9795&pl=Calculate"},"980":{"question":"An annulus has small radius of 980 and large radius of 984. Calculate the area.","answer_a":"7859π","answer_b":"7857π","answer_c":"7858π","answer_d":"7856π","answer_correct":"D","mcurl":"annulus.php?r1=984&r2=9805&pl=Calculate"},"981":{"question":"What is the area of an annulus with small radius of 982 and large radius of 985?","answer_a":"5901π","answer_b":"5903π","answer_c":"5898π","answer_d":"5902π","answer_correct":"A","mcurl":"annulus.php?r1=985&r2=9825&pl=Calculate"},"982":{"question":"An annulus has small radius of 984 and large radius of 986. Calculate the area.","answer_a":"3940π","answer_b":"3941π","answer_c":"3943π","answer_d":"3942π","answer_correct":"A","mcurl":"annulus.php?r1=986&r2=9845&pl=Calculate"},"983":{"question":"An annulus has small radius of 983 and large radius of 987. Calculate the area.","answer_a":"7880π","answer_b":"7879π","answer_c":"7878π","answer_d":"7883π","answer_correct":"A","mcurl":"annulus.php?r1=987&r2=9835&pl=Calculate"},"984":{"question":"What is the area of an annulus with small radius of 986 and large radius of 988?","answer_a":"3945π","answer_b":"3946π","answer_c":"3947π","answer_d":"3948π","answer_correct":"D","mcurl":"annulus.php?r1=988&r2=9865&pl=Calculate"},"985":{"question":"What is the area of an annulus with small radius of 985 and large radius of 989?","answer_a":"7899π","answer_b":"7894π","answer_c":"7896π","answer_d":"7895π","answer_correct":"C","mcurl":"annulus.php?r1=989&r2=9855&pl=Calculate"},"986":{"question":"An annulus has small radius of 988 and large radius of 990. 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Calculate the area.","answer_a":"3970π","answer_b":"3971π","answer_c":"3968π","answer_d":"3967π","answer_correct":"C","mcurl":"annulus.php?r1=993&r2=9915&pl=Calculate"},"990":{"question":"What is the area of an annulus with small radius of 990 and large radius of 994?","answer_a":"7935π","answer_b":"7936π","answer_c":"7933π","answer_d":"7934π","answer_correct":"B","mcurl":"annulus.php?r1=994&r2=9905&pl=Calculate"},"991":{"question":"What is the area of an annulus with small radius of 993 and large radius of 995?","answer_a":"3975π","answer_b":"3976π","answer_c":"3978π","answer_d":"3973π","answer_correct":"B","mcurl":"annulus.php?r1=995&r2=9935&pl=Calculate"},"992":{"question":"An annulus has small radius of 995 and large radius of 996. 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