Question 640379
I need to solve for r

:
v = {{{1/3}}}*{{{pi*r^2h}}}
:
{{{1/3}}}*{{{pi*r^2h}}} = v
multiply both sides by 3
{{{pi*r^2h}}} = 3v
divide both sides by {{{pi*h}}}
{{{r^2}}} = {{{(3v)/(pi*h)}}}
find the square root of both sides
r = {{{sqrt((3v)/(pi*h))}}}