Answer:
45º and -1.
Explanation:
The angle is
 given in radians, but you want the angle in degrees.

We got a Quadrant IV Angle.
Once the reference angle is the smallest angle that the terminal side of a given angle makes with the x-axis, we are talking about the angle 
.
Therefore, the reference angle is 
.
Also, the tangent of 
 is -1