Question

V=πr^2h
solve for r
r=

Answer 1

`r=`
`\sqrt{ (V)/( \pi h) }`

Answer 2

To solve for r, you just need to isolate r. To do that, divide by h and π on both sides:

`(V)/(h \pi )=r^2`

Then, square root both sides to get rid of the 'squared':

`r = \sqrt{ (V)/(h \pi ) }`

Or, if you wanted the answer in terms of π, then just don't divide by it, just divide by h and then square root it.