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cbrusoe

Two similar cylinders have heights 6 inches and 15 inches. What is the ratio of their surface areas? Answer 4 : 25 8 : 25 9 : 10 9 : 25

  • one year ago
  • one year ago

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  1. jhonyy9
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    the surface area of a cylinder is 2pir *height so than the ratio will be 6/15 = 2/5

    • one year ago
  2. cwrw238
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    6^2 : 15^2

    • one year ago
  3. cwrw238
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    or 4:25

    • one year ago
  4. quakeash
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    the surface area for the cylinder is the same as the circle and has nothing to do with height

    • one year ago
  5. quakeash
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    |dw:1337716417085:dw|

    • one year ago
  6. cwrw238
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    2 cylinders are similar so areas in ratio of squares of corresponding lengths

    • one year ago
  7. cbrusoe
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    oh ok thank-you guys

    • one year ago
  8. jhonyy9
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    quakeash this not is right because the surface area of a cylinder is 2 time area of base (down and up) + lateral area what is curcumpherance of base time height of cylinder

    • one year ago
  9. jhonyy9
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    circumpherance sorry

    • one year ago
  10. cbrusoe
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    wait the answer is stil 4:25 right?

    • one year ago
  11. cwrw238
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    yes cbrusoe - its 4:25

    • one year ago
  12. cbrusoe
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    ok thank-you

    • one year ago
  13. cwrw238
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    yw

    • one year ago
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