# How do I find the sides of a right triangle using only the trig functions sin cos and tan?

##### 1 Answer

Jul 22, 2015

You can not find the sides of a right triangle without knowing the length of at least one of the sides (and this assumes you know at least one of the non-right angled angles).

#### Explanation:

The trig functions only give you the ratio of sides.

All similar triangles will have the same ratio of sides.

For example the