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Angle Vocabulary
Term | Definition |
---|---|
Complementary Angles | 2 angles whose measures have a sum of 90 |
Supplementary angles | 2 angles whose measures have a sum of 1800 |
Adjacent angles | 2 angles that are side by side; they have a common vertex and ray |
Vertical angles | two angles formed by 2 intersecting lines; they are always congruent |
Parallel lines | 2 lines that are always the same distance apart and never touch |
Transversal | a line that cuts across two or more lines |
Corresponding angles | angles at the same location at each intersection when a transversal cuts across other lines |
Alternate interior angles | a pair of angles on the inner side of each of 2 lines but opposite sides |
Alternate exterior angles | a pair of angles on the outer side of each of 2 lines but opposite sides |
Consecutive interior angles | a pair of angles on the inner side of each of 2 lines and the same side |
Consecutive exterior angles | a pair of angles on the outer side of each of 2 lines and the same side |