Answer
$V=\frac{4}{3}\pi r^3$.
Work Step by Step
The volume of the sphere is $V$.
The radius is $=r$.
$\frac{4}{3}$ times $\pi$ times the cube of the radius is
$=\frac{4}{3}\pi r^3$
The volume of the sphere is equal to $\frac{4}{3}$ times $\pi$ times the cube of the radius.
$V=\frac{4}{3}\pi r^3$.
