Q1. The angle of elevation of an aeroplane from a point on the ground is 60°. After a flight of 15 seconds, the angle of elevation changes to 30°. If the aeroplane is flying at a constant height of 1500V3 m, find the speed of the plane in km/hr.

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Heights and Distances ( Part 3) Some Applications of Trigonometry | CBSE | Class 10 | Math «
Q1. The angle of elevation of an aeroplane from a point on the ground is 60°. After a flight of 15 seconds, the angle of elevation changes to 30°. If the aeroplane is flying at a constant height of 1500V3 m, find the speed of the plane in km/hr.

4+ y ago 4:10

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