Answer
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r = 3.1830988618379
d = 6.3661977236758
A = 10.1321π or 31.8309
d = 6.3661977236758
A = 10.1321π or 31.8309
↓Steps Explained:↓
A circle has circumference = 20
Calculate Area, Circumference, Radius, Diameter
Calculate radius (r):
C = 2πr
Rearranging the equation, we get:
| r = | C |
| 2π |
| r = | 20 |
| 2 * 3.1415926535898 |
| r = | 20 |
| 6.2831853071796 |
r = 3.1830988618379
Calculate diameter (d):
d = 2r
d = 2 * 3.1830988618379
d = 6.3661977236758
Calculate Area (A):
A = πr2
A = π * 3.18309886183792
A = 10.1321π or 31.8309
Final Answers
r = 3.1830988618379d = 6.3661977236758
A = 10.1321π or 31.8309
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Related Calculators: Unit Circle | Circle Equation | Annulus