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A 90-foot rope from the top of a tree house to the ground forms a 45∘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 fo

 Apr 22, 2020
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You have a 45-45-90 right triangle whose hypotenuse is 90.

To find either of the sides of this triangle, divide the hypotenuse by sqrt(2).

So, your answer is  90 / sqrt(2).

Now, use your calculator to get a decimal answer ...

 Apr 22, 2020

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