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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asked by Amanda
  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
  3. Stop Cheating! We have message boards for a reason. :D sike

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    posted by AoPS Admin
  4. Yes, please DO NOT cheat use the message board if you are in trouble or needing assistance.

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    posted by AoPS Ashely Ahlin
  5. Ya Boi!

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    posted by Ya Boi!
  6. Called Out!

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    posted by Called Out!
  7. Cheater cheater pumpkin eater friend me 9n Xbox my name is pcps
    Aries

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    posted by a guy

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