The elevation of an object on a hill is observed from a certain point in the horizontal plane through its base, to be `30^@`. After walking 120 metres towards it on level ground the elevation is found to be `60^@` . Then the height of the object (in metres ) is

The elevation of an object on a hill is observed from a certain point in the horizontal plane through its base,to be 30^(@) .After walking 60 meters towards it on level ground the elevation is found to be 45^(@) .Then the height of the object (in meters) is

The angle of elevation of an object on a hill is observed from a certain point in the horizontal plane through its base, to be 30^(@) . After walking 120 m towards it on a level groud, the angle of elevation is found to be 60^(@) . Then the height of the object (in metres) is

The angle of elevation of an object on a hill is observed from a certain point in the horizontal plane through its base, to be 30^(@) . After walking 120 m towards it on a level groud, the angle of elevation is found to be 60^(@) . Then the height of the object (in metres) is

The elevation of top of a hill is observed from a certain point in the horizontal plane through its base, to be 30^(@) . After walking 120 meters towards it on level ground the elevation is found to be 60^(@) . Then the height of the object (in meters) is

The angular elevation of the top of a tower from a distant point on the horizontal ground is observed to be 30^(@)and proceeding 30 metre from the point towards the foot of the tower it is observed to be 45^(@) .Find the height of the tower .

From a point on the ground, the angle of elevation of a summit is found to be 45^(@) . After walking 150mt towards the mountain, the angle of elevation of the summit is found to be 60^(@) . The height of the mountain is:

At a certain point the angle of elevation of a tower is found to be cot^(-1)(3/5) . On walking 32 metres directly towards the tower its angle of elevation is cot^(-1)(2/5) . The height of the tower in metres is

The angle of elevation of the top of a tower standing on a horizontal plane from a point A is alpha. After walking a distance d towards the foot of the tower the angle of elevation is found to be beta. The height of the tower is____