Parallel Lines cut by a Transversal Parallel Lines cut by a Transversal are formed when two parallel lines are intersected diagonally by an additional line. This additional line is called a transversal. When two Parallel Lines cut by a Transversal happen, there are four types of congruent angles that are formed and can be used to solve for missing angles. The first type of congruent angle formed by Parallel Lines cut by a Transversal are Vertical Angles. Vertical Angles are angles that are located diagonally across from each other. The second type of congruent angles are Corresponding Angles. Corresponding angles are located in the same location but on each different parallel line. The third type of congruent angles are Alternate Exterior Angles, which are angles that are on the exterior of the figure and also on the opposite side of the transversal. The last type of congruent formed by Parallel Lines cut by a Transversal are Alternate Interior Angles, which are angles that are on the interior of the figure and also on the opposite side of the transversal. For the best classroom resources, videos for flipping lessons, guided notes, practice worksheets, and mastery quizzes go to https://www.mathcation.com Practice this lesson yourself on Mathcation.com right now: https://www.mathcation.com/parallel-l...