Question

Solve the formula V = pi r2h for r

Answer 1

root(V / hpi) = r

Explanation:

i assume this is the volume of a cylinder and as such
V = pi * r^2 * h
divide both sides by hpi
V / hpi = r^2
root both sides
root(V / hpi) = r

Answer 2

`V=\pi * r^(2)* h\\\\\Longrightarrow V=r^(2)* \left( \pi * h\right) \\\\\Longrightarrow r^(2)=(V)/(\pi * h) \\\\\Longrightarrow r=\sqrt{(V)/(\pi * h) }`