As given by the question
There are given that the formula of volume of a cylinder:
[tex]V=\pi\times r^2\times h[/tex]Now,
For the value of h
[tex]\begin{gathered} V=\pi\times r^2\times h \\ \frac{V}{h}=\frac{\pi\times r^2\times h}{h} \\ \frac{V}{h}=\pi\times r^2 \end{gathered}[/tex]Then,
[tex]\begin{gathered} \frac{V}{h}=\pi\times r^2 \\ h=\frac{V}{\pi\times r^2} \end{gathered}[/tex]Hence, the correct option is C.