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10 June, 14:09

If a cone-shaped water cup holds 23 in.³ has a radius of 1 inch, what is the height of the cup? Use 3.14 for pi. Round your answer to the nearest hundredth.

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  1. 10 June, 15:45
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    Volume of the cone is 23 in^3. = (1/3) pi r^2 h.

    Given r=1, pi=3.14

    so we have

    (1/3) (3.14) 1^2 h=23

    h=23 / ((1/3) (3.14) 1^2)

    =21.97

    =22 in. (approx.)
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