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A ladder that is 20 feet long leans against the side of a house. The angle of elevation of the ladder is 85°. Find the height from the top of the ladder to the ground.

Guest Feb 21, 2017
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The wall, ladder and ground form a right triangle. The hypotenuse is the ladder, which is 20 ft.

sin85°= x/20

20sin85°=x

x ≈ 19.924 ft.

hectictar  Feb 21, 2017

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