The angle measure is 50 degrees. If you look at the protractor, it only goes up to 180 degrees. So, you put the bottom line of the angle where you have it, and you look at the top line, and you see that it hits the protractor at 130. So, to calculate the angle measure you do 180-130 which gives you 50. Or, you can just look at the numbers below the bigger numbers, you see the line hits the protractor right at 50, meaning the angle is 50 degrees.