A rectangle has length x width of 5 x 4
Calculate the perimeter and area
Calculate Area (A):
A = l x w
where l = length and w = width
Plug in l = 5 and w = 4
A = 5 x 4
A = 20
Calculate Perimeter (P):
P = 2(l + w)
where l = length and w = width
Plug in l = 5 and w = 4
P = 2 * (5 + 4)
P = 2 * 9
P = 18
Calculate diagonal length
Diagonal = √l2 + w2
where l = length and w = width
Plug in l = 5 and w = 4
Diagonal = √52 + 42
Diagonal = √25 + 16
Diagonal = √41
Diagonal = 6.4031242374328
Calculate the circumradius R:
| R = | √l2 + w2 |
| 2 |
| R = | √52 + 42 |
| 2 |
| R = | √25 + 16 |
| 2 |
| R = | √41 |
| 2 |
| R = | 6.4031242374328 |
| 2 |
R = 3.2015621187164
| r = | 20 |
| 9 |
Calculate the inradius r:
| r = | lw |
| l + w |
| r = | (5)(4) |
| 5 + 4 |
| r = | 20 |
| 9 |
r = 2.2222222222222
Other Properties:
Faces = 1
Edges = 4
Vertices = 4
Final Answers
l = 5
w = 4
A = 20
P = 18
Diagonal = 6.4031242374328
R = 3.2015621187164
r = 2.2222222222222
Faces = 1
Edges = 4
Vertices = 4
w = 4
A = 20
P = 18
Diagonal = 6.4031242374328
R = 3.2015621187164
r = 2.2222222222222
Faces = 1
Edges = 4
Vertices = 4
Common Core State Standards In This Lesson
4.MD.A.3
What is the Answer?
l = 5
w = 4
A = 20
P = 18
Diagonal = 6.4031242374328
R = 3.2015621187164
r = 2.2222222222222
Faces = 1
Edges = 4
Vertices = 4
w = 4
A = 20
P = 18
Diagonal = 6.4031242374328
R = 3.2015621187164
r = 2.2222222222222
Faces = 1
Edges = 4
Vertices = 4
How does the Rectangles and Parallelograms Calculator work?
Free Rectangles and Parallelograms Calculator - Solve for Area, Perimeter, length, and width of a rectangle or parallelogram and also calculates the diagonal length as well as the circumradius and inradius.
This calculator has 4 inputs.
This calculator has 4 inputs.
What 2 formulas are used for the Rectangles and Parallelograms Calculator?
P=2l+2w
A=l*w
A=l*w
What 9 concepts are covered in the Rectangles and Parallelograms Calculator?
- area
- Number of square units covering the shape
- circumradius
- a radius of the circle inside which the polygon can be inscribed
- inradius
- a radius of an inscribed circle or sphere
- length
- the measurement or extent of something from end to end
- parallelogram
- simple quadrilateral with two pairs of parallel sides.
- perimeter
- The distance around a shape or object
- rectangle
- a quadrilateral with four right angles
- rectangles and parallelograms
- width
- the measurement or extent of something from side to side.
