Wednesday
July 30, 2014

Homework Help: Trigonometry

Posted by Marika on Wednesday, January 2, 2013 at 4:20pm.

From an observation tower that overlooks a small lake, the angles of depression of point A, on one side of the lake, and point B, on the opposite side of the lake are, 7degrees and 13degrees, respectively. The points and the tower are in the same vertical plane and the distance from A to B is 1km. Determine the height of the tower.

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