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Angle Relationships
Term | Definition |
---|---|
Right angle | measures 90° |
Straight angle | measures 180° |
Complementary angles | angles whose measures add up to 90° |
Supplementary angles | angles whose measures add up to 180° |
Vertical angles | opposite, congruent angles formed by two intersecting lines |
Adjacent angles | angles that share a side and vertex but do not overlap |
Vertex | the point on an angle where two sides meet |
Intersecting lines | Lines that cross at exactly one point |