SAT, 30.11.2021 22:20 chackey

You are designing a cm3 right circular cylindrical can whose manufacture will take waste into account. There is no waste in cutting the aluminum for the side, but the top and bottom of radius r will be cut from squares that measure r units on a side. The total amount of aluminum used up by the can will therefore be , where h is the height of the right circular cylindrical can. What is the ratio of h to r for the most economical can?.

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