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26 November, 21:21

A town's public works department has ordered sand to spread on roadways during the upcoming winter snows. The delivered sand forms a right cone 36 feet high and a base diameter of 60 feet. How many cubic yards of sand has the department received?

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  1. 27 November, 00:14
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    1256 cubic yards of sand.

    Step-by-step explanation:

    In this question we have to find the volume of cone formed by sand.

    Height of the cone is = 36 feet

    Radius of the cone = 60/2 = 30 feet.

    Now we know the formula of volume of cone v = π r² (h/3)

    By putting the values of r and h we can get the volume of sand to spread.

    Volume = π * (30) ² * (36/3) = 3.14*900*12 feet³

    = 33912 feet³

    Now we will convert feet³ to cubic yards

    Since 1 cubic feet =.037037 cubic yards

    therefore 33912 cubic feet = 33912*.037 = 1256 cubic yards.

    So the answer is 1256 cubic yards of sand has the department received.
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