# How do you find the reference angle for #-(3pi)/4#?

##### 1 Answer

the reference angle is

#### Explanation:

The reference angle is always the smallest angle that you can make from the terminal side of an angle (ie where the angle ends) with the x-axis. A reference angle always uses the x-axis as its frame of reference.

For

(Note that if your angle is positive, it will start from 0 and turn anticlockwise, if your angle is negative, it will start from 0 and turn clockwise.)

So, the reference angle is the angle between the terminal side and the x-axis.Lets find out that angle.

And the reference angle is

There is another simpler way to do it.

There is a formula to find the reference angle

So, lets put