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13 September, 07:52

If a right circular cone has a volume of 15 cubic ft and a radius of 3 ft, what is the height of the cone?

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  1. 13 September, 08:18
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    Volume of cone=1/3 times height times pir^2

    v=15

    r=3

    15=1/3 hpi3^2

    15=1/3hpi9

    15=9/3hpi

    15=3hpi

    divide 3

    5=hpi

    h=5/pi

    pi=aprox 3.14

    5/3.14=1.59

    1.59 ft
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