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5 December, 03:38

An engineer on the ground is looking at the top of a building. The angle of elevation to the top of a building is 38°. The engineer knows the building is 300 ft tall. What is the distance from the engineer to the base of the building to the nearest whole foot?

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  1. 5 December, 07:33
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    Let the distance of the engineer from the base of the building be x, then

    tan 38 = 300/x

    x = 300/tan 38 = 300/0.7813 = 383.98

    Therefore, the distance from the engineer to the base of the building to the nearest whole foot is 384 feet.
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