how much taller is one tree than the other? use trigonometry

Question

Jason is lying on the ground between 2 trees that are 100m apart. He is 20m away from the base of the first tree and the angle of elevation to the top of the first tree is 18. The angle of elevation to the top of the second tree is 13. how much taller is one tree than the other. include a diagram and round your answer to the nearest tenth

Answer 1

The height of the nearer tree is 20 tan 18 and the height of the farther one is 80 tan 13.

I will leave the computation to you.