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OpenStudy (anonymous):
Find the length of the radius of a sphere with a surface area of 63.62 km2.
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OpenStudy (mertsj):
\[SA=4\pi r^2\]
OpenStudy (mertsj):
Replace SA with 63.62 and solve for r
OpenStudy (anonymous):
so 2.25
OpenStudy (mertsj):
yep
OpenStudy (anonymous):
thanks
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