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18 February, 15:33

The volume of a right circular cone is 1,780.38 in3. If the height of the cone is 21 in, what is the diameter of the cone? (Use = 3.14)

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  1. 18 February, 16:12
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    18 inches

    Step-by-step explanation:

    formula is V = π * r^2 * h/3.

    h = 21. 21/3 = 7.

    7*3.14 = 21.98.

    1,780.38/21.98 = 81.

    √81 = 9.

    r = 9

    d = 2r

    9*2 = 18 inches.
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