need help! please be quick, love you

Answer:
r = [tex]\sqrt{ \frac{V}{pi h }[/tex]
Step-by-step explanation:
V = pi r^2 h
Divide both sides by pi h
V / pi h = pi r^2 h / pi h
V / pi h = r^2
Take the square root of each side
sqrt( V / pi h) =sqrt( r^2)
sqrt( V / pi h) = r
r = [tex]\sqrt{ \frac{V}{pi h }[/tex]