A person walking along a st. road towards aobserves at two points, distance `sqrt3 km`, the angles of elevation of the hill to be `30 and 60^@`. The height of the hill is

A person walking along a straight road towards a hill observes at two points distances sqrt3 km. The angle of elevation of the hill to be 30^@ and 60^@ . The height of the hill is

A person walking along a straight road observes that a two points 1 km apart, the angles of eleva-tion of a pole in front of him are 30^@ and 75^@ . The height of the pole is

A person walking along a straight road observes that a two points 1km apart,the angles of eleva-tion of a pole in front of him are 30^(@) and 75^(@). The height of the pole is

A person walking along a straight road observes that at two consecutive kilometre stones the angles of elevation of a hill in front of him are 30^(@) and 45^(@) find the height of the hill

The angle of elevation of the top of a hill from a point is alpha . After walking b metres towards the top up a slope inclined at an angle beta to the horizontal,the angle of elevation of the top becomes gamma .Then the height of the hill is :

The angle of elevation of the top of a hill from a point is alpha . After walking b metres towards the top up of a slope inclined at an angle beta to the horizon, the angle of elevation of the top becomes gamma . Then , the height of the hill is

The angle of elevation of the top of a hill from a point on the horizontal planes passing through the foot of the hill is found to be 45^(@) . After walking a distance of 80 meters towards the top , up a slope inclined at an angle of 30^(@) to the horizontal plane , the angle of elevation of the top of the hill becomes 75^(@) . Then the height of the hill ( in meters ) is _________

The angle of elevation of an object on a hill from a point on the ground is 30^@ . After walking 120 metres the elevation of the object is 60^@ . The height of the hill is