That could be like alot of things... angles can be any degree... like one to 360 degrees I believe.... so it could be a 80 degree angle and a 100 degree angle... 60 and 120 20 and 160... as long as the two angles added up equal 180 the answer is right... ^^^ have no idea what that person is saying but I'm 17 n doin a math crossword and figure out it would be a Supplementary angle.hope that helps
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Two angles whose sum is 180 degrees are called supplementary angles. When two angles are supplementary, it means that the sum of their measures equals 180 degrees. This relationship is often used in geometry to solve for unknown angles or to identify complementary angles.
180 degrees
Any two angles whose measures add up to 180 degrees. For example, opposite angles of a cyclic quadrilateral (quadrilateral whose vertices are on a circle).
supplementary angles
They are called linear pair, because their farthest sides lie on the same line.Any two angles that add to 180 degrees are called supplementary angles.