1.

The angle of elevation of stationary cloud from a point 25 m above a lake is 15° and the angle of depression of its image in the lake is 45°. The height of the cloud above the lake level is

A. 25 m
B. \(25\sqrt 3 \;m\)
C. 50 m
D. \(50\sqrt 3 \;m\)
Answer» C. 50 m


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