A 1.2 m tall girl spots a ballon moving ...

A 1.2 m tall girl spots a ballon moving with 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^(@)`. Find the distance travelled by the balloon during the interval.

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The correct Answer is:

`58sqrt(3)`m

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A 1.2m tall girl spots a ballon moving with the wind in a horizontal line at a height of 88.2m from a ground.The angle of elevation of the balloon from the eyes of the girl at any instant is 60^(0). After some time,the angle of elevation reduces to 30^(0). Find the distance travelled by the balloon during the interval.

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