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Question

The top of a building from a fixed point is observed at an angle of elevation 60o and the distance from the foot of the building to the point is 100 m. The height of the building is 100a m, then
a is _____ .

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Solution

Lettheheightofthebuildingbehm.InABC,tan60=ABBC3=h100h=1003m
76632_88626_ans.png

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