from a point 100m above a lake, the angle of elevation of a stationary helicopter is 30 degree and the angle of depression of reflection of helicopter in the lake is 60 degree. find the height of the helicopter.

Asked by devanshmudgal | 19th Feb, 2011, 07:34: PM

Expert Answer:

Dear student,
 
 
Thus, the height of the helicopter is 200 m.
 
We hope that clarifies your query.
 
Regards,
Team
TopperLearning

Answered by  | 20th Feb, 2011, 10:10: PM

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