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anonymous

  • 5 years ago

I REALLY NEED SOMEONE TO HELP ME WITH AT LEAST ONE OF THESE PROBLEMS.. PLEASE The solid is similar to a larger solid with the given scale factor, find the surface area and volume of the larger solid.cone: scale factor 3:4, SA=96pi cm^2, V=96pi cm^3

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  1. anonymous
    • 5 years ago
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    do you mean that the height and the radius are proportionally larger in the bigger cone?

  2. anonymous
    • 5 years ago
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    im not sure its the second one in this picture.

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  3. anonymous
    • 5 years ago
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    can u please help me?

  4. anonymous
    • 5 years ago
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    okay, can you get the radius from the surface area and post it here?

  5. anonymous
    • 5 years ago
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    how would i do that

  6. anonymous
    • 5 years ago
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    surface area = 96 so what is the radius?

  7. anonymous
    • 5 years ago
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    what is the formula for SA of a cone? what is the formula for Volume of cone?

  8. anonymous
    • 5 years ago
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    R=2.76395

  9. anonymous
    • 5 years ago
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    Cone (surface) pi * radius * side Cone (1/3) * pi * radius2 * height

  10. anonymous
    • 5 years ago
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    http://math.about.com/od/formulas/ss/surfaceareavol_2.htm

  11. anonymous
    • 5 years ago
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    okay so how do i find the radius

  12. anonymous
    • 5 years ago
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    ?

  13. anonymous
    • 5 years ago
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    radius would be 4?

  14. anonymous
    • 5 years ago
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    multiply old radius by (3/4) and plug that into equation to get new parameters of cone

  15. anonymous
    • 5 years ago
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    If two similar solids have a scale factor of a:b then corresponding areas have a ratio of a2:b2, and corresponding volumes have a ration of a3:b3.

  16. anonymous
    • 5 years ago
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    Surface area Surface area a2 = b2 Volume Volume a3 = b3

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