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OpenStudy (anonymous):
Find the surface area of a sphere having a radius of 4".
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OpenStudy (anonymous):
what is the formula for calculating the surface area of a sphere with a given radiur "r"?
OpenStudy (anonymous):
\[4\pi r ^{2}\] where "r" is the radius
OpenStudy (anonymous):
4*3.14*4*4 = 200.96
OpenStudy (anonymous):
or ~ 200 square inches
OpenStudy (anonymous):
oh okay i kinda get it now.
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