angle pairs & transversals vocab

transversal

a line that intersects two or more lines at different points

supplementary angles

two angles whose measures add up to 180

alternate interior angles

angles that lie inside the two lines, on opposite sides of the transversal

linear pair

two adjacent angles who form a straight line

same side exterior angles

angles that lie outside the two lines on the same side of the transversal

vertical angles

two nonadjacent angles formed by two intersecting lines; they sit directly across from each other at the vertex

alternate exterior angles

angles that lie outside the two lines, on opposite sides of the transversal

complementary angles

two angles whose measures add up to 90

corresponding angles

angles on the same side of the transversal, with one inside the two lines and one outside the two lines

same side interior angles

angles that lie inside the two lines, on the same side of the transversal