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Some Applications Of Trigonometry

Question 16:

The angles of elevation of the top of a tower from two points at a distance of 4 m and 9 m. from the base of the tower and in the same straight line with it are complementary. Prove that the height of the tower is 6 m.

Answer:

Let AQ be the tower and R, S are the points 4m, 9m away from the base of the tower respectively.

The ang...

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