Upload
rosa-marjory-oconnor
View
408
Download
0
Tags:
Embed Size (px)
Citation preview
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