Diagram showing two right triangles with algebraic expressions for sides, demonstrating triangle congruence criteria including SSS, SAS, ASA, AAS, and HL Theorem.
Two right triangles with labeled sides and angles, illustrating congruence conditions. A box lists methods to prove triangle congruence: SSS, SAS, ASA, AAS, and HL Theorem, with "AAS Theorem" circled and "No AAS in class!" noted.