Question

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.

Answer 1

Explanation:

let x be the height .

then x/85=sin 45

x=85 sin 45=85×√2/2=42.5√2≈60.1 foot.