Question

Find the surface area of a sphere with a diameter of 30 inches. Leave your answer in terms of pi.(1 point)
Responses

2,826π in.2
2,826 pi inches squared

900π in.2
900 pi inches squared

3,600π in.2
3,600 pi inches squared

225π in.2

Answer 1

Surface area = 4πr^2. With diameter 30, r = 15, so area = 4π(15^2) = 4π(225) = 900π in^2.

Answer: 900π in.^2 (the "900π in.2" option).