SOLUTION: The angle of elevation to the top of a tower from point A on the ground is 18.6 degrees . From a point​ B, 30.1 feet closer to the​ tower, the angle of elevation is 21.
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Question 1131838: The angle of elevation to the top of a tower from point A on the ground is 18.6 degrees . From a point B, 30.1 feet closer to the tower, the angle of elevation is 21.3 degrees . What is the height of the tower?
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
Two right triangles sharing a vertical side and the right angle.
x, the distance from bottom of tower to point B
y, distance to top of the tower from ground
Solve the system to get y.
If you solve x in terms of y with one equation and substitute into the other equation, algebra steps should lead to:
.
You can compute that.
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