The area of circle C is 64pi ft. What is the value of r

The radius is 8 ft

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

64 pi = pi r^2

Divide each side by pi

64 pi / pi = pi/pi r^2

64 = r^2

Take the square root of each side

sqrt (64) = sqrt (r^2)

8 = r