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Item 13

An 80-foot rope from the top of a tree house to the ground forms a 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.

 Mar 5, 2018
edited by Guest  Mar 5, 2018

To find the height, H, we can use :


sin (45°) =  H  / 80      rearrange as


H  =  80 *  sin (45°)   ≈  56.6  ft  



cool cool cool

 Mar 6, 2018

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