This video appears on the page: Congruent Triangles–SSS, SAS, AAS, ASA, H-L

Tips & Tricks For Congruent Triangle Proofs

This video gives you a couple of the common tricks that seem to keep popping up in proofs again and again, to jog your memory when you're having trouble with a proof. The biggies: the reflexive property of congruence, and vertical angles.