How can the exterior angles of a hexagon be measured?

You know how to find the measure of your interior angle, so your exterior angle is simply 180 - Interior Angle. For the triangle, 180 - 60 = 120. 120 degrees is the measure of the exterior angle. One last thing I want to share with you is actually quite interesting. For any regular polygon, if you add up all the exterior angles, they will always add up to 360 degrees. read more

Therefore, if we know the measure of an interior angle, we can find the measure of its adjacent exterior angle by subtracting from 180 degrees. For example, in an equilateral triangle, the exterior angle is 360 divided by 3 angles = 120 degrees. So each interior angle is 180 - 120 = 60 degrees. read more