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 Question from grace, a student: How do you find the radius of a sphere when all you know is the volume?

Hi Grace,

The volume $V$ of a sphere of radius $r$ units is $V = \large \frac43 \normalsize \pi \;r^3 .$ Thus if you know the volume $V$ you can solve for $r.$

Penny

Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.