The angles of depression of point C, then observed from the point A is `45^(@)`. If BC = 1m determine `(AB)/(1m)`.

The angle of depression of a ship as observed from the top of a lighthouse is 45^(@) . If the height of the lighthouse is 200 m , then what is the distance of the ship from the foot of the lighthouse ?

The angle of depression of a point on the ground from the top of a tree is 60^(@) . Lowering down 20 m from the top, the angle of depression changes to 30^(@) . Find the distance between the point and the foot of the tree. Also find the height of the tree.

The angle of elevation of a cloud C from a point P, 200 m above a still lake is 30^(@) . If the angle of depression of the image of C in the lake from the point P is 60^(@) , then PC (in m) is equal to :

A pole of length 7 m is fixed vertically on the top of a tower. The angle of elevation of the top of the pole observed from a point on the ground is 60^(@) and the angle of depression of the same point on the ground from the top of the tower is 45 The height (in m) of the tower is:

A pole 5 m high is fixed on the top of a tower. The angle of elevation of the top of the pole as observed from a point A on the ground is 60^(@) and the angle of depression of the point A from the top of the tower is 45^(@) . Find the height of the tower.

Suppose angle of depression from top of the tower to point A is 45^(@) and height of tower is 10 m. What is the distance of point A from the building?

The angle of depression of a point situated at a distance of 70 metres from the base of a tower is 45^@ . The height of the tower is