Question 56107
(3/1)V=(3/1)(1/3pir^2h)
3V=pir^2h
(1/pi)(3V)=(1/pi)(pir^2h)
3V/pi=r^2h
(1/r^2)(3V/pi)=(1/r^2)(r^2h)
3V/pir^2=h

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Check by plugging (h=3V/pir^2) back into the original equation and solve]