A tower subtends an angle of 60° at a point A on the same level as the foot of the tower. B is a point vertically above A such that AB = h. The angle of depression of the foot of the tower, measured from B, is 30°. What is the height of the tower?

Two points, A and B, are given. If the Reduced Level (RL) of point A is 100.00 m, find the difference in RL between A and B given that the back sight to A is 2.0 m and the fore sight to B is 1.5 m.

A 24 m long ladder is leaning against a wall. If the ladder makes an angle of 30° with the wall, what is the distance (in m) of the foot of the ladder from the wall?