Question 1061644
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You did not go wrong.  The radius that gives the minimum total surface area is *[tex \Large \sqrt[3]{\frac{500}{\pi}].


*[tex \Large \sqrt[3]{\frac{250}{\pi}] cannot possibly be the answer because that radius value yields a surface area that is roughly 28 square inches larger than the surface area of the cylinder with the *[tex \Large \sqrt[3]{\frac{500}{\pi}] inch radius.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
<img src="http://c0rk.blogs.com/gr0undzer0/darwin-fish.jpg">
*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  

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