John wants to measure the height of a tree

How tall is the flagpole if its shadow is 14 meters when the angle of elevation of the sun is 31°? 3.67 ft. The angle of elevation to the top of a building is 21°. At a point 80 feet closer, the angle of elevation to the top of the same building is 33°. Approximate the height of the building. 75.1 ft ................
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