Question

What is the exact area of a circle with a radius of 12 feet?

A.
24π square feet

B.
36π square feet

C.
121π square feet

D.
144π square feet

Answer 1

Area = PI * R^2
R = 12, so R^2 = 144
A = 144 * PI.

Answer 2

\(\ \huge A= \pi r^2 \). So, \(\ \huge A= \pi \times 12^2 \). That's \(\ \huge 144 \pi feet^2 \).