12 terms

Parallel Lines

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parallel lines
2 lines that never cross and stay the same distance apart
transversal
line that intersects two or more parallel lines
interior angles
angles on the inside of the parallel lines when cut by a transversal
exterior angles
angles on the outside of parallel lines cut by a transversal
corresponding angles
A pair of angles which are on the same side of the transversal, one must be interior, one must be extirior, and they must be nonadjacent
vertical angles
two non adjacent angles formed by two intersecting lines
alternate interior angles
nonadjacent interior angles that lie on opposite sides of the transversal
alternate exterior angles
Angles that lie outside a pair of lines and on opposite sides of a transversal. They are congruent
congruent angles
Angles that have the same measure
supplementary angles
Two angles whose sum is 180 degrees
nonadjacent
not adjacent
adjacent
near, next to, adjoining
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