Transversals

Transversal lines are lines that intersect two or more coplanar lines at different points.

Corrseponding angles are two angles that occupy corresponding positions.

Same-side interior angles are two angles that lie between the two lines on the same side of transversal.

Alternate exterior angles are two angles that lie outside the two lines on the opposite sides of the transversal.

Alternate interior angles are two angles that lie inside the two lines on the opposite side of the transversal.