chapter 4 congruent triangles. 4.3 proving triangles congruent: sss and sas
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Chapter 4
Congruent Triangles
4.3 Proving Triangles Congruent: SSS and SAS
• Bow-tie shapes always have vertical angles.• Parallel lines usually have alternate interior angles.• Shared lines are always REFLEXIVE.
Example 1: Using SSS
Example 2: Using SAS
Example 3: Choosing a Congruence Postulate
Example 4: Determining Whether Triangles are Congruent
Checkpoint
CheckpointDecide whether the two triangles can be congruent and state which theorem you can use
4.4 Proving Triangles Congruent: ASA and AAS
Example 1: Developing Proof
Example 2: Proving Triangles Congruent
Example 3: Proving Triangles Congruent
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