Answer :
The angles as shown are supplementary angles because the add up to 180 degrees.
What are supplementary angles?
Two angles are said to be supplementary if they add up to 180 degrees. Now we know that the sum of angles on straight line is 180 degrees. If we look at the image as shown in the image attached, we can see that the angles lie on a straight line.
As such, we can conclude that the angles as shown are supplementary angles because the add up to 180 degrees.
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