Alternate Interior Angles And Alternate Exterior Angle. If playback doesnt begin. If lines are parralel then corresponding angles are congruent and alternate exterior angles are congruent.
Those angles are known as interior or exterior angles. Angles that are in the area between the parallel lines like angle 2 and 8 above are called interior angles whereas the angles that are on the outside of the two parallel lines like 1 and 6 are called exterior angles. Explore angle relationships in parallel lines.
Angles that are on the opposite sides of the transversal are called alternate angles eg.
The angle pairs are on Alternate sides of the Transversal and they are on the Interior of the two crossed lines. In the diagram below transversal l intersects lines m and n. Alternate angles are shaped by the two parallel lines crossed by a. Those angles are known as interior or exterior angles.