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18 March, 20:41

An 85-foot rope from the top of a tree house to the ground forms a $45/degree$45° angle of elevation from the ground. How high is the top of the tree house? Round your answer to the nearest tenth of a foot.

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  1. 18 March, 23:59
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    Step-by-step explanation:

    let x be the height.

    then x/85=sin 45

    x=85 sin 45=85*√2/2=42.5√2≈60.1 foot.
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