Which are the angles of elevation?

Angle Of Elevation

A man is moving away from a tower 41.6m high at the rate of 2m/sec. Find the rate at which the angle of elevation of the top of tower is changing,when he is at a distance of 30m from the foot of the tower.Assume that the eye level of the man is 1.6m from the ground.

A man is moving away from a 40-m high tower at a speed of 2 m/s. Find the rate at which the angle of elevation of the top of the tower is changing when he is at a distance of 30 metres from the foot of the tower. Assume that the eye level of the man is 1.6 m from the ground.

A man standing at a point P is watching the top of a tower, which makes an angle of elevation of 30o with the mans eye. The man walks some distance towards the tower to watch its top and the angle of elevation becomes 60o . What is the distance between the base of the tower and the point P ? 4sqrt(3) units (b) 8 units (c) 12 units (d) Data inadequate

The angle of elevation of the top of a pole is 60^(@) . If the height of the pole increases, the angle of elevation will also increase.

On the level ground, the angle of elevation of a tower is 30^(@) . On moving 20 m nearer, the angle of elevation is 60^(@) . The height of the tower is

The angle of elevation of the top of a pillar of height h at a point on the ground at a distance x from the pillar is 30^(@) . On walking a distance 'd' towards the pillar the angle of elevation becomes 60^(@) . Then, which one of the following is correct?

The angle of elevation of the top of a pillar of height h at a point on the ground at a distance x from the pillar is 30^(@). On walking a distance d' towards the pillar the angle of elevation becomes 60^(@) Then, which one of the following is correct?