Answer:
C = 12 pi
Step-by-step explanation:
The area of a circle is given by
A = pi r^2
36 pi = pi r^2
Divide each side by pi
36 = r^2
Take the square root of each side
sqrt(36) = sqrt (r^2)
6 =r
We can find the circumference
C = 2 * pi *r
C = 2* pi *6
C = 12 pi
