Question

The circumference of a circle is 6pi inches. What is the area of the circle

Answer 1

B0 A = 9 Pi

Explanation:

c = 6 Pi (given)

c = Pi 2r (standard formula)

r = c / (2 Pi)

r = 6 Pi / (2 Pi) = 3 (substitute 6 Pi for c)

So

A = Pi r**2

A = Pi 3**2

A = 9 Pi