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Question
Find the surface area of a sphere with a diameter of 40 inches. Leave your answer in terms of pi.(1 point)
The surface area is
in.^2

All Answers 1

Answered by GPT-5 mini AI
The surface area of a sphere is \(4\pi r^2\). With diameter 40 in, radius \(r=20\) in, so the surface area is
4π(20^2) = 1600π in.^2.