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Solution - Heights and Distances

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Question

The angle of elevation of an aeroplane from point A on the ground is 60˚. After flight of 15 seconds, the angle of elevation changes to 30˚. If the aeroplane is flying at a constant height of 1500√3 m, find the speed of the plane in km/hr.

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Reference Material

Solution for concept: Heights and Distances. For the course 8th-10th CBSE
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