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The surface area of a sphere is A pi cm^2 and the volume of the sphere is B pi cm^3.  If A/B = 1/2, then what is the radius of the sphere?

 Oct 15, 2020
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surface areaA / Volume B  = 1/2

4 pi r^2  /  (4/3  pi r^3) = 1/2

3 / r  = 1/2

3 (2) = r = 6

 
 Oct 15, 2020

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