**Question 4:**

Diagram below shows three vertical poles

*JP*,*KN*and*LM*, on a horizontal plane.The angle of elevation of

*N*from*P*is 15^{o}.The angle of depression of

*M*from*N*is 35^{o}.Calculate the distance, in

*m*, from*K*to*L*.

*Solution:***Question 5:**

Diagram below shows two vertical poles

*JM*and*LN*, on a horizontal plane.The angle of elevation of

*M*from*K*is 70^{o}and the angle of depression of*K*from*N*is 40^{o}.Find the difference in distance, in

*m*, between*JK*and*KL*.

*Solution:*