Height and Distance - General Questions

The angles of elevation of the top of a 18√3 m tower from two points on the same side of it, in line with its foot, are 30° and 60°. What is the distance between the two points?

A ladder leaning against a wall makes an angle of 60° with the ground. The foot of the ladder is 6 m from the wall. What is the length of the ladder?

The angles of elevation of the top of a 6√3 m tower from two points on the same side of it, in line with its foot, are 30° and 60°. What is the distance between the two points?

The angles of elevation of the top of a 13√3 m tower from two points on the same side of it, in line with its foot, are 30° and 60°. What is the distance between the two points?

From a point on the ground 9 m away from the foot of a pole, the angle of elevation of the top is 30°. What is the height of the pole?