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The angle of elevation of a stationer...

The angle of elevation of a stationery cloud from a point 2500 m above a lake is `15o` and the angle of depression of its reflection in the lake is `45o` . What is the height of the cloud above the lake level? (Use `tan15o=0. 268` )

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The correct Answer is:
`H=2500sqrt(3)`cm
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