meaning of complementary angles
Introduction: Some angles can be classified according to their positions or measurements in relation to other angles. We examine three types: complementary, supplementary, and vertical angles. Definitions: Complementary angles are two angles with a sum of 90Âº. Supplementary angles are two angles with a sum of 180Âº. Vertical angles are two angles whose sides form two pairs of opposite rays. We can think of these as opposite angles formed by an X. The Lesson: In the triangle shown below, the angles A and B are complementary because they have a sum of 90Âº.