A 1.5m tall boy is standing at some distance from a 30m tall building. The angle of elevation from his eyes to the top of the building increase from `30^(@) " to " 60^(@)` as he walks towards the building. Find the distance he walked towards the building.

Angle of elevation of top of building is 30^(@) from place A and become 45^(@) from another place B that is 10 m from A towards the building as shown in the figure Height of building is :-

The angle of elevation of the top of a tower at a distance 500m from the foot is 30^(@) . Then, the height of the tower is ………m.

The angle ofelevation of the top of a tower from the foot of the building is 30^(@) and the angle of elevation of the top of the building from the foot of the tower is 60^(@) . What is the ratio ofheights of tower and building.

An observer, 1.5m tall, is 28.5m away from a 30m high tower. Determine the angle of elevation of the top of the tower from the eyes of the observer.

The angles of depression of the top and the bottom of an 8m tall building from the top of a multi-storeyed building are 30^(@) and 45^(@) , respectively. Find the height of the multi-storeyed building and the distance between the two buildings.

Angle of elevation is the angle which line of sight makes with the horizontal. Angle of elevation of the top of a tall building is 30^(@) from a place A and becomes 60^(@) from another place B that is 10sqrt()3 m from A towards the building as shown in the figure. Height of the building is close to

The angle of elevation of the top of a building from the foot of the tower is 30^(@) and the angle of elevation of the top of the tower from the foot of the building is 60^(@) . If the tower is 50m high, find the height of the building.

From a point P on the ground the angle of elevation of the top of a 10m tail building is 30^(@) . A flag is hoisted at the top of the building and the angle of elevation of the top of the flagstaff from P is 45^(@) . Find the length of the flagstaff and the distance of the building from the point P. (You may take sqrt3= 1.732 )

From the top of a building 60m high, the angles of depression of the top and the bottom of a tower are observed to be 30^(@) and 60^(@) . Find the height of the tower.

From the top of a building, the angle of elevation of the top of a cell tower is 60^(@) and the angle of depression to its foot is 45^(@) . If distance of the building from the tower is 7m, then find the height ofthe tower.