Answer :
[tex]V=3.14r^2h\ \ \ \ \ |divide\ both\ sides\ by\ 3.14r^2\\\\\boxed{h=\dfrac{V}{3.14r^2}}[/tex]
[tex]v=3.14r^2h[/tex]
[tex] \dfrac{v}{3.14} =r^2h[/tex] [tex]Divide \ both \ sides \ by \ 3.14[/tex]
[tex] \dfrac{v}{3.14r^2} =h[/tex] [tex]Divide \ both \ sides \ by \ r^2[/tex]
[tex] \dfrac{v}{3.14} =r^2h[/tex] [tex]Divide \ both \ sides \ by \ 3.14[/tex]
[tex] \dfrac{v}{3.14r^2} =h[/tex] [tex]Divide \ both \ sides \ by \ r^2[/tex]