A tower is `100sqrt(3)` metres high. Find the angle of elevation of its top from a point 100metres away from its foot.

A building is 200sqrt3 meters high. Find the angle of elevation if its top is 200 m away from its foot.

A TV tower stands vertically on a bank of a canal. The tower is watched from a point on the other bank directly opposite to it. The angle of elevation of the top of the tower is 58^(@) . From another point 20m away from this point on the line joining this point to the foot of the tower , the angle of elevation of the top of the tower is 30^(@) . Find the height of the tower and the width of the canal . (tan 58^@ = 1.6003)

A boy observed the top of an electric pole at an angle of elevation of 60^(@) when the observation point is 8 meters away from the foot of the pole. Find the height of the pole.

A flagstaff on the top of the tower 80 meter high, subtends an angle tan ^(-1)(1/9right) at a.point on the ground 100 -meters away from the foot of the tower. Find the height of the flag-staff (in metres)

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 30 m high, find the height of the building.

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.

A man is moving away from a tower 41.6 m high at the rate of 2 m/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.

From te top of a tower , 60 meters high, the angles of depression of the top and bottom of a pole are alpha and beta respectively .Find the height of the pole.