From the foot of a building I have to look upwards at an angle of 22degrees to sight the top of a tree. From the top of a building, 150 meters above ground level, I have to look down at an angle of depression of 50degrees to look at the top of the tree.

Question

a. How tall is the tree?
b. How far from the building is the tree?

Answer 1

draw a horizontal line from the top of the tree to the building to create 2 right-angled triangle
That line is common to both
So, set up a trig equation for each triangle using that common side.
You can then use substitution to get your answer.