Answer:
r = [tex]\sqrt{\frac{3V}{4\pi h} }[/tex]
Step-by-step explanation:
V = [tex]\frac{4}{3}[/tex] πr²h ( multiply both sides by 3 to clear the fraction )
3V = 4πr²h ( isolate r² by dividing both sides by 4πh )
[tex]\frac{3V}{4\pi h}[/tex] = r² ( take square root of both sides )
[tex]\sqrt{\frac{3V}{4\pi h} }[/tex] = r
