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Angle Vocabulary
Term | Definition |
---|---|
acute angle | less than 90 degrees |
obtuse angle | more than 90 degrees |
right angle | 90 degrees |
complementary angles | 2 angles that have a sum of 90 degrees |
supplementary angles | 2 angles that have a sum of 180 degrees |
vertical angles | share a vertex, are across from one another and are equal |
adjacent angles | share a vertex, one side, are next to each other and are equal |
transversal | a line that intersects a set of parallel lines |
alternate interior angles | angles that are on different sides of the transversal and inside the parallel lines |
alternate exterior angles | angles that are on different sides of the transversal and outside the parallel lines |
corresponding angles | angels in the same location around the transversal on different parallel lines |
parallel lines | 2 lines in the same plane that never intersect |
perpendicular lines | 2 lines that intersect to form right angles |
congruent | equal in size |
intersect | crosses |