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cbrusoe

  • 3 years ago

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

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

  2. cwrw238
    • 3 years ago
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    6^2 : 15^2

  3. cwrw238
    • 3 years ago
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    or 4:25

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

  5. quakeash
    • 3 years ago
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    |dw:1337716417085:dw|

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

  7. cbrusoe
    • 3 years ago
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    oh ok thank-you guys

  8. jhonyy9
    • 3 years ago
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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

  9. jhonyy9
    • 3 years ago
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    circumpherance sorry

  10. cbrusoe
    • 3 years ago
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    wait the answer is stil 4:25 right?

  11. cwrw238
    • 3 years ago
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    yes cbrusoe - its 4:25

  12. cbrusoe
    • 3 years ago
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    ok thank-you

  13. cwrw238
    • 3 years ago
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    yw

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