from the top of a building 20m high the angle of elevation of the top of a monument is 45 degree high and the angle of depression of its foot is 15 degree. Find the high of the monument
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From the top of a building 20 m high, the angle of elevation of the top of the monument is 45° and the angle of depression of its foot is 15. Find the height of the monument. Ans: 94.64 m.
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