Which expression gives the surface area of a sphere with radius r?A.4r2B.4r3C.r2D.r3
Question
Which expression gives the surface area of a sphere with radius r?A.4r2B.4r3C.r2D.r3
Solution
The surface area of a sphere with radius r is given by the formula 4πr². So, the correct answer is A. 4r².
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