Name: Parallel Lines Cut By A Transversal Graphic Organizer Definition Transversal A transversal is a line that intersects two or more lines at different points Corresponding Angles Two angles that lie on the same side of the transversal in the same position (same place, different line) Vertical Angles Two angles across from each other Diagram Measures Angle Pairs either supplementary or congruent CONGRUENT CONGRUENT Alternate Interior Angles Angles inside the parallel lines that are on opposite sides of the transversal CONGRUENT Alternate Exterior Angles Angles outside the parallel lines that are on opposite sides of the transversal CONGRUENT Linear Pair Two angles that create a straight line SUPPLEMENTARY (add up to 180°) Same Side (Consecutive) Interior Angles Angles inside the parallel lines that are on the same side of the transversal SUPPLEMENTARY (add up to 180°) Same Side (Consecutive) Exterior Angles Angles outside the parallel lines that are on the same side of the transversal SUPPLEMENTARY (add up to 180°)