Question: how many degrees are alternate exterior angles?
Answer: You will look at the picture and ask yourself if angles 1 and 8 are alternate exterior angles. If they are, then you know that they are equal to each other. So, if angle 8 is 120 degrees, then so is angle 1. In this case, angles 1 and 8 are alternate exterior angles and therefore angle 1 is also 120 degrees.