The measure of the other supplementary angle is 100 degrees.
A supplementary angle are angles that add up to 180 degrees. For example 150 and 30 degrees are supplementary angles. This is because the sum of 150 and 30 degrees is 180 degrees.
In order to determine the valueof angle b, subtract 80 from 180.
Measure of angle b = 180 - 80 = 100
To learn more about supplementary angles, please check: https://brainly.com/question/2766460
