Class 19 Maths Ex 9.1 Q14 (Some Applications of Trigonometry)

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A 1.2 m tall girl spots a balloon moving with the wind in a horizontal line at a height of 88.2 m from the ground. The angle of elevation of the balloon from the eyes of the girl at any instant is 60°. After some time, the angle ofelevation reduces to 30° 

(see Fig. 9.13).Find the distance travelled by the

balloon during the interval.

Class 10 Maths Ex 9.1 Q14  (Some Applications of Trigonometry), Ncert, CBSE Board

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