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OpenStudy (anonymous):
Find the length of the radius of a sphere with a surface area of 314.16 ft2. A. 5 ft B. 15 ft C. 10 ft D. 2.5 ft
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OpenStudy (experimentx):
10
OpenStudy (anonymous):
10
OpenStudy (king):
5
OpenStudy (king):
its actually 4.998999899998...
OpenStudy (anonymous):
I concur with mr. King here. 4pi r^2 = 314.16 4r^2 = 100 r^2 = 25 r = 5
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