Question

If the radius is 40 ft, what is the area of the circle?

Answer 1

C - 1600
`\pi` sq. ft.

Explanation:

Since the answer has to be in terms of pi, we can exclude that from the equation.

The formula to find the area of a circle is
`\pi r^2` where r is the radius. If we plug in 40 for r, we get 1600
`\pi`.

Answer 2

A = pi(r)^2

A = pi(40)^2

A = 1,600pi sq. ft.

Therfore the answer is C.) 1,600 pi sq. ft.

I hope this helps you!!