Properties of Transversals

                                                       Two Lines Cut by a Transversal

Transversal~ is a line that intersects two or more coplanar lines at different points
Corresponding Angles~ two angles that occupy corresponding positions
Alternate Interior Angles~ two angles that lie between the two lines on the opposite sides of the transversal
Alternate Exterior Angles~ two angles that lie outside the two lines on the opposite sides of the transversal
Same-Side Interior Angles~ two angles that lie between the two lines on the same side of the transversal