21.1 Parallel Lines Cut by Transversal

 Magic of Math Parallel Lines Cut by Transversal

Video on this lesson here   and here

Geogebra play with transversals HERE

Practice this lesson here

practice finding equations and solving here  and here

• QUIZIZZ  Review

21.3  Angle Similarity

• Magic of Math Video on AA Similarity    {start video at 5 min 53 sec in.}