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

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.

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.

A 1.2m tall girl spots a balloon moving with the wind in a horizontal line at a height 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 sometime, the angle of elevation reduces 30°.Find the distance travelled by the balloon during the interval.

A boy whose eye level is 1.3 m from the ground, spots a balloon moving with the wind in a horizontal line at same height from the ground. The angle of elevation of the balloon from the eyes of the boy at an instant is 60^(@) . After 2 seconds, the angle of elevation reduces to 30^(@) . If the speed of the wind is 29sqrt(3) m//s then find the height of the balloon from the ground.

The angle of elevation of the top of a tower from a point on the ground is 30^(@) . After walking 40sqrt3 m towards the tower, the angle of elevation becomes 60^(@) . Find the height of the tower.

The angle of elevation of the top of a tower at a point on the ground is 30o.On walking 24m towards the tower,the angle of elevation becomes 60_(0). Find the height of the tower.

The angle of elevation of the top of a tower from a point on the ground is 30^(@) . After walking 45 m towards the tower, the angle of elevation becomes 45^(@) . Find the height of the tower.

A man from the top of a 100 m high tower sees a car moving towards the tower at an angle of depression 30°. After some time, the angle of depression becomes 60°. What is the distance travelled by the car during this time ?

A girl is observing a bird sitting at a height of 500 m from the ground. The angle of elevation of the bird from the girl's eyes is 45^(@) at the initial position. After some time, the girl moves on the ground towards the bird by 50 m and bird flies away from her. At this point, the angle of elevation reduces to 30^(@) . Find the distance travelled by the bird. Take sqrt(3) = 1.73