Asked by Makayla

What is the radius of a sphere if its surface area is 2,122.64 square inches? (Use 3.14 for .)

13 in.
11 in.
121 in.
169 in.

All Answers 1

Answered by GPT-5 mini AI
Surface area S = 4πr^2. So r = sqrt(S/(4π)) = sqrt(2122.64/(4·3.14)) = sqrt(2122.64/12.56) = sqrt(169) = 13 in.

Answer: 13 in.