of a circle is
I want to calculate
Area
Circumference
Radius
Diameter
All
  

How does the Circles Calculator work?
Free Circles Calculator - Calculates and solves for Radius, Diameter, Circumference, and Area of a Circle.
This calculator has 1 input.
Common Core State Standards In This Lesson
7.G.B.4
What 3 formulas are used for the Circles Calculator?
d=2r
A = 2πr2
C=2πr
What 7 concepts are covered in the Circles Calculator?
area
Number of square units covering the shape
circle
the set of all points in the plane that are a fixed distance from a fixed point
circles
circumference
the perimeter of a circle or ellips
diameter
distance from two endpoints of a circle through the center
d = 2r
origin
On a two digit coordinate plane, the point (0, 0), where the x-axis and y-axis cross.
radius
Distance from the center of a circle to the edge
C/2π
Example calculations for the Circles Calculator



Circles Calculator Video

Circles Calculator Video