An observer wishes to determine the height of a tower. He takes sights at the top of the tower from A and B, which are 50 feet apart, at the same elevation on a direct line with the tower. The vertical angle at point A is 300 and at point B is 400. What is the height of the tower?
A PLDT tower and a monument stand on a level plane. The angles of depression of the top and bottom of the monument viewed from the top of the PLDT tower are 13 degrees and 35 degrees, respectively. The height of the tower is 50 meters. Find the height of the monument.
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