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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
 #1
avatar+99659 
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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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