4.5 ASA and AAS Ways to prove 2 triangles congruent:

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Proving Triangles Congruent

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4.5 ASA and AAS Ways to prove 2 triangles congruent: Definition of congruent figures (6 facts). SSS (3 facts). SAS (3 facts). HL (3 facts) ASA (3 facts). AAS (3 facts).

The included side is a side shared by the two named angles.

Just treat "flow proofs" as 2 column proofs. a. No. AAA does not prove two triangles congruent. The triangles share a side (reflexive prop.). The triangles are congruent by AAS. Vertical angles are congruent. The triangles are congruent by ASA. Just treat "flow proofs" as 2 column proofs.

Geometry page 252(1-13, 18-20) page 252 (14-17, 23-28, 31-34, 36-42 ev) review Test 4.1 - 4.5