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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 |