The angles of depression and elevation of the top of a wall 11 m high from top and bottom of a tree are 60° and 30° respectively. What is the height of the tree?

The angles of depression and elevation of the top of a wall 11 m high

1.	The angles of depression and elevation of the top of a wall 11 m high from top and bottom of a tree are 60° and 30° respectively. What is the height of the tree?
A.	2 m
B.	4 m
C.	3 m
D.	one of these
Answer» C. 3 m