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The angle of elevation of the sun is 45°. What is the length of the shadow of a 150 m tall tree?
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The angle of elevation of the sun is 45°. What is the length of the shadow of a 150 m tall tree?
The angles of elevation of the top of a 19√3 m tower from two points on the same side of it, in line with its foot, are 30° and 60°. What is the distance between the two points?
The angles of elevation of the top of a 17√3 m tower from two points on the same side of it, in line with its foot, are 30° and 60°. What is the distance between the two points?