If two angles are supplementary to the same angles, then they are ______
Two angles are said to be supplementary angles if they add up to 180 degrees.
Angle 1 and Angle 2 are supplementary, if Angle 1 + Angle 2 = 180o
Angles that are equal in the measure are known as congruent angles.
When two angles are supplementary to the same angles, then they are a supplement of the same angle. So, the two angles are congruent.