Its supplementary angle is 50 degrees because 50+130 = 180 degrees.
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Supplementary angles add up to 180 degrees. If one angle = 130 degrees the other must be 180 - 130 = 50 degrees
No. All linear pair angles are supplementary, but supplementary angles do not have to be a linear pair.
Supplementary angles are any angles in which their degrees add to a sum of 180o. In the related links you will find an example of Supplementary angles.
Angles that are congruent and supplementary must be right angles.
Supplementary angles are two angles which add up to 180°.