# Geometry/Math

Two right circular cylinders have equal volume. The first cylinder has a radius of 6 inches and a height of 12 inches. What is the number of inches in the height of the second cylinder if its radius is 8 inches? Express your answer as a common fraction, without units.

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1. volume of 1st = π(36)(12) = 432π

volume of 2nd = π(64)h

64π h = 432π
h = 432π/(64π)
= 27/4

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posted by Reiny
2. 27/4

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posted by kk
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posted by AoPS Ashely Ahlin
5. Ya Boi!

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posted by Ya Boi!
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posted by Called Out!
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posted by a guy

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