Answer :
[tex]V=\frac{1}{3}\pi(r^2)h[/tex][tex]\frac{3V}{\pi h}=r^2[/tex]
Thus, to solve for r:
[tex]r=\sqrt[]{\frac{3V}{\pi h}}[/tex]
Thus, to solve for r:
[tex]r=\sqrt[]{\frac{3V}{\pi h}}[/tex]