12 terms

ACKademic79TEACHER

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