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1. 4.5 Proving Congruence ASA, AAS
2. 4 Ways to Prove ?s Congruent: SSS
SAS
ASA (angle-side-angle) If 2 angles & included side of 1 ? is congruent to 2 angles & included side of another ? ? triangles congruent.
3. Proof Example:
4. 4. AAS (angle-angle-side) If 2 <s & non-included side of 1 ? is congruent to 2 <s and non-included side of another ? ? ?s congruent
5. Proof Example:
6. One more SPECIAL way: HL (hyp-leg) if the hyp & leg in 1 rt ? are congruent to the hyp & corr leg in another rt ? ? ?s congruent
7. 4.5 worksheet