# Math

Two transparencies, both 8.5 inches by 11 inches, were folded and taped to make cylinders. Prove mathematically, that they have the same volumes

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1. As long as the same dimension was used for rolling, the circumference is the same and the height is the same.

So, the radii are the same, and both cylinders have volume π r^2 h.

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posted by Steve

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