The bottom right corner of the angle is the origin, putting the majority of the arc in quadrant II.
0 degrees starts on the positive x-axis to right.
Counterclockwise is a positive angle.
All degrees are relative to the edges of the picture.
The side nearest to the positive y-axis is at ~92.38°
The side nearest to the negative x-axis is at ~180.32°
The angle or the arc is ~87.94°
An actual 89° arc, I do appreciate. An 88° arc labelled as an 89°, I do not. I ardently hope you gain more skill in measuring angles, and have less malice that causes you to wish your misery on others.