SOLUTION: What is an equation for the surface area of a cylinder whose height is equal to its diameter as a function on its volume? HELP!

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Question 579969: What is an equation for the surface area of a cylinder whose height is equal to its diameter as a function on its volume? HELP!
Answer by mananth(16946)   (Show Source): You can put this solution on YOUR website!
Volume V = pi * r^2 * h
h=2r
V= pi * r^2*(2r)^2
V= pi*4r^4

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