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Complementary Angles

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Complementary angles are a pair of angles whose measures add up to 90 degrees.

Complementary angles is a middle school-level concept. It is listed in the California State Standards for Grade 6.

Prerequisites

Angle: An angle is a measure of the amount of rotation about the point of intersection of two lines or line segments that is required to bring one into correspondence with the other.

Classroom Articles on Plane Geometry

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