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OpenStudy (anonymous):
PLEASE HELP!! What is the surface area of a sphere with radius 2? A. 4 pi units^2 B. 2 pi units^2 C. 8 pi units^2 D. 16 pi units^2
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OpenStudy (anonymous):
\[4 \pi r^2\]\[4 \pi 2^2 = 4 \pi 4 = 16 \pi\]
OpenStudy (anonymous):
thanks i wanted to make sure if my answer is right thankss!
OpenStudy (anonymous):
no problem :)
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