Alternate Interior Angles
angles on opposite sides of a transversal that crossess parallel lines and are inside the other two lines
Complementary Angles
two or more angles whose angle measures add up to 90
Supplementary Angles
two or more angles that add up to 180
Alternate Exterior Angles
angles on opposite sides of a transversal that crosses parallel lines and are outside the other two lines
Same Side Interior Angles
angles are on the same side of the
Same Side Exterior Angles
angles are on the same side of the transversal and are outside the other two lines. they are supplementary angles, also called consecutive exterior angles
Parallel Line
2 sides that never intersect
Transversal
line that crosses two or more lines
Vertical Angles
pair of opposite congruent angles formed by intersecting lines
Linear Pair
adjacent, supplementary angles
Adjacent Angles
two angles in the same plane that have a common vertex and a common side, but no common interior