Answer:
r= 4 ft
Step-by-step explanation:
The area of a circle is given by
A = pi r^2
We know the area is
16 pi = pi r^2
Divide each side by pi
16 pi/pi = pi r^2/pi
16 = r^2
Take the square root of each side
sqrt(16) = sqrt(r^2)
4 =r
Sometimes