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20 March, 15:07

A 5 foot long board is propped against the wall of a house. The board forms a 60% angle with the ground. How far is the base of the board from the wall?

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  1. 20 March, 15:30
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    2.5 ft

    Step-by-step explanation:

    Cosine = adjacent / hypotenuse

    cos 60° = x / 5

    x = 5 cos 60°

    x = 2.5

    The base of the board is 2.5 feet from the wall.
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