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if the volume of a sphere is 250 inches cubic, then what is the radius? About how many inches?

Guest May 14, 2017
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Vsphere  =   (4/3) * pi * radius^3    ....   so  ....

 

250  =  (4/3) * pi * radius^3            divide both sides by (4/3) pi

 

250 / [ (4/3) pi ]   =   radius^3        take the cube root of each side

 

∛ [ 250 /  (4/3 pi) ]   =  r   ≈  3.9   inches

 

 

cool cool cool

CPhill  May 14, 2017

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