A helicopter is in a stationary position at a certain height over the – InterviewSolution

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1.	A helicopter is in a stationary position at a certain height over the lake. At a point 200 m above the surface of the lake, the angle of elevation of the helicopter is 45^(@). At the same time, the angle of depression of its reflection in the lake is 75^(@). Calculate the height of the helicopter from the surface of the lake :
Answer» `(200)/SQRT3` m `200sqrt3` m 200 m 150 m Answer :B

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