The angle of elevation of the top of a tower at a distance of 120 m form a point a on the ground is 45°. If the angle of elevation of the top of a flagstaff fixed at the top of the tower, at A is 60°, then find the height of the flagstaff. [Use √3 = 1.73](CBSE 2014)

From the top of a 7-meter-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. [Use √3 = 1.732.](CBSE 2013)

The angles of elevation and depression of the top and the bottom of a tower from the top a building, 60 m high, are 30° and 60° respectively. Find the difference between the heights of the building and the tower and the distance them.(CBSE 2014)

From a point P on the ground the angle of elevation of the top of a tower is 30° and that of the top of a flag staff fixed on the top of the tower, is 60°. If the length of the flag staff is 5 cm, find the height of the tower.(CBSE 2015)

At a point A, 20 meters above the level of water in a lake, the angle of elevation of a cloud is 30°. The angle of depression of the reflection of the cloud in the lake, at A is 60°. Find the distance of the cloud from A.(CBSE 2015)