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pre algebra check

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What is the diameter of a cone with a height of 10 yards and a volume of 92.4 cubic yards? Round to the nearest whole number.

82.97=r^2???

  • pre algebra check -

    92.4 = 1/3 pi r^2 (10)
    r^2 = 8.8

    PS: don't forget you want the diameter

  • pre algebra check -

    So is it 17.6??

  • pre algebra check -

    no, r^2 = 8.8
    r = 2.97, so diameter is 5.94

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