1.

A 1.2m 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 of elevation reduces to 30^(@) (see the given figure). FInd the distance travelled by the balloon during the interval.

Answer»


ANSWER :`58 sqrt3m`


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