What is the answer to this question?

Answer:
130 degrees
Step-by-step explanation:
Remember to use 180 degrees, you subtract 180 from 50, to get angle 2, which is 130.
Like angle 1 would be; 180-60= 120
angle 3 would be; 180-70= 110
If it tells you to find the other side of the angles, (ex. opposite to 50degrees & angle 2) ; you would use 360degrees, which means the opposite side is also equal to 180, because 180 is *half* of 360degrees