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24 April, 16:55

A roof on a castle tower is shaped like a cone with a diameter of 12 feet and has a slant height of 13 feet one bundle of Shingles covers 32 ft.² how many bundles should you buy to cover the roof

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  1. 24 April, 19:30
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    Step-by-step explanation:

    The lateral area of a cone is ...

    LA = (π/2) ds

    where d is the diameter, and s is the slant height.

    The area of this tower roof is about ...

    LA = (π/2) (12 ft) (13 ft) = 78π ft² ≈ 245 ft²

    About 245/32 = 7.7 bundles of shingles will be required for coverage.

    You should buy 8 bundles of shingles to cover the roof.
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