What types of angles are there?
There are right angles (exactly 90 degrees), acute angles (less than 90 degrees), obtuse angles (more than 90 degrees), and reflex angles (more than 180 degrees).
If we know that there is 360 total degrees, we can figure out what number degree is x by using this equation:
360 - 50 = 310
Therefore, because 310 is more than 180 degrees, it is considered a reflex angle.