A circle has circumference = 19
Calculate Area, Circumference, Radius, Diameter
Calculate radius (r):
C = 2πr
Rearranging the equation, we get:
| r = | C |
| 2π |
| r = | 19 |
| 2 * 3.1415926535898 |
| r = | 19 |
| 6.2831853071796 |
r = 3.023943918746
Calculate diameter (d):
d = 2r
d = 2 * 3.023943918746
d = 6.047887837492
Calculate Area (A):
A = πr2
A = π * 3.0239439187462
A = 9.1442π or 28.7274
Final Answers
r = 3.023943918746d = 6.047887837492A = 9.1442π or 28.7274
You have 1 free calculations remaining
What is the Answer?
r = 3.023943918746d = 6.047887837492A = 9.1442π or 28.7274
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.
What 3 formulas are used for the Circles Calculator?
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 centerd = 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 edgeC/2π
Example calculations for the Circles Calculator
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