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Math Help - volume cylinder/cone ?

  1. #1
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    Question volume cylinder/cone ?

    The volume of a cylinder is 300x(pi) cubic inches. If the height of a cone with the same base is 12 inches, what is the diameter of the cone? Can someone please explain or help how to get an answer for this?
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  2. #2
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    Repost:

    The volume of a cylinder is 300∏ cubic inches. If the height of a cone with the same base is 12 inches, what is the diameter of the cone? Can someone please explain or help how to get an answer for this?


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  3. #3
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    let r be radius of the cone, h be its height

    (pi)(r^2)(h) = 300pi
    (r^2)(12) = 300
    r^2 = 25
    r = 5
    hence its diameter is 10 inches
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