The angle of elevation of a stationary helicopter as seen from a point on the deck of a ship 60…



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To ask Unlimited Maths doubts download Doubtnut from – https://goo.gl/9WZjCW The angle of elevation of a stationary helicopter as seen from a point on the deck of a ship 60m above sea level, is `30^@` and the angle of depression of its reflection in the water is `60^@`. Find the height of the helicopter above the sea-level.

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