Question

How do you find area when you have the circumfrence?

Answer 1

find the radius 1st

Answer 2

then use that radius to find its area.

Answer 3

use pi r^2 to find the area

Answer 4

to find the radius 1st:
use this form:

C = pi d/2

this will give u the radius

Answer 5

C=2*pi*r
A=pi*r^2=2*1/2*pi*r*r=1/2*r*2*pi*r=1/2*r*C
so once you have circumference you need to find r to find area