CHALLENGE

$2\mathrm{.}27\mathrm{.}1$: Sphere volume

Given sphereRadius, compute the volume of a sphere and assign sphereVolume with the result. Use $(4\mathrm{.}0/3\mathrm{.}0)$ to perform floatingpoint division, instead of $(\frac{4}{3})$ which performs integer division.

Volume of sphere $=(\frac{4\mathrm{.}0}{3\mathrm{.}0})r^3($ Hint: $r^3$ can be computed using $*.$ Use the constant Math.PI for the value of pi$.)$