ClipArt ETC
Illustration showing that when two parallel lines are cut by a transversal, the two interior angles on the same side of the transversal are supplementary.

Parallel Lines Cut By A Transversal

Illustration showing that when two parallel lines are cut by a transversal, the two interior angles…

Illustration to show two triangles with the same base and on the same side of the base.

Triangles With The Same Base

Illustration to show two triangles with the same base and on the same side of the base.