Height and distance

The angle of elevation of the sun, when the length of the shadow of a tree 3 times the height of the tree, is:

A.	30º	B.	45º
C.	60º	D.	90º

Answer: Option A

Explanation:

Let AB be the tree and AC be its shadow.

Let ACB = .

Then,	AC	=	3 cot = 3
	AB

= 30º.