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what is the maximum possible volume of a open top cup that only as 12ft^2 of material. what dimensions (radius, height) will give you the max volume

 Apr 5, 2021
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Surface area is $2\pi r(h+r)=12\implies rh+r^2=\frac{6}{\pi}$.

We want to maximize $\pi r^2 h$. 

 Apr 5, 2021

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