Answer:
Red: 108
Blue: 55
Explanation:
You can see that the 2 sidelines are parallel. This means that the line from purple to blue is a transversal or a line that passes through 2 parralel lines. The line from red to green is also a transversal.
This means that on the transversal, the angles must be supplementary, or add up to 180.
For purple to blue, we have 125 + x = 180. So x is 55.
For Red to green, we have 72 + x = 180. So x is 108