The angle of depression from the top of a 20 m high vertical cliff to a boat B is 8∘ . How far is the boat from the base of the cliff?
Diagram for Question 6 showing a cliff of height 20 m. A boat B is in the sea. The angle of depression from the top of the cliff to the boat is 8 degrees. A horizontal dashed line is drawn from the top of the cliff, and the angle between this line and the line of sight to the boat is 8 degrees.