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OpenStudy (anonymous):
SA = 4πr2 Leah has two congruent beach balls. The diameter of one ball is 20 inches. Which choice is the closest for the surface area of the second ball?
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OpenStudy (anonymous):
A) 1,257 in2 B) 4,189 in2 C) 5,027 in2 D) 20,106 in2
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