geometry
posted by ashly .
The cylindrical storage tank has a height of 12 feet.Which of the following expressions could be used to find the volume of the tank in cubic feet?

V = r ^ 2 * pi * h
V = 12 * r ^ 2 * pi
OR
V = ( d ^ 2 * pi ) * 12 / 4
V = 3 * ( d ^ 2 * pi )