a student is standing 20 feet away from the base of a tree. he looks to the top of the tree at a 50° angle…

a student is standing 20 feet away from the base of a tree. he looks to the top of the tree at a 50° angle of elevation. his eyes are 5 feet above the ground. using cos 50° ≈ 0.64, what is the height of the tree to the nearest foot?

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