A boy saw the top of building under construction at an elevation of `30^@`. The completed building was 12 m higher and the boy saw its top at an elevation of `60^@` from the same spot.
Draw a rough figure based on the given details.

A statue, 1.6m tall, stands on the top of a pedestal. From a point on the ground, the angle of elevation of the top of the statue is 60^(@) and from the same point the angle of elevation of the top of the pedestal is 45^(@) . Find the height of the pedestal.

The angle of elevation of the top of an unfinished verticle building on a ground at a point which is 100 m from the base of the building is 45^(@) . How much height the building must be raised so that its angle of elevation from the same point be 60^(@) . (Take sqrt(3)=1.73)

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 50 m high, find the height of the building.

The angle of elevationof 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 the top of a 7m high building, the angle of elevation of the top of a cable tower is 60^(@) and the angle of depression of its foot is 45^(@) .Determine the height of the tower.

A bird is sitting on the top of a tree 80 m high. From a point on the ground the angle of elevation of the bird is 45^(@) . The bird flies horizontally such that it remains at a constant height from the ground. After 2 seconds the angle of elevation of the bird from the same point is 30^(@) . Find the speed of the flying bird.

A boy releases a hall from the top of a building. It will clear a window 2 m high at a distance 10 m below the top in nearly :