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# 4.2 Triangle Congruence by SSS and SAS · 4.2_Triangle_Congruence_by_SSS_and_SAS 11 November 20,...

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4.2_Triangle_Congruence_by_SSS_and_SAS 1 November 20, 2009 Oct 286:54 AM 42 Triangle Congruence Theorems SSS and SAS Objective: Prove that two triangles are congruent using the SSS and SAS Postulates.
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• 4.2_Triangle_Congruence_by_SSS_and_SAS

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42 Triangle Congruence TheoremsSSS and SAS

Objective:

Prove that two triangles are congruent using the SSS and SAS Postulates.

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Review:

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Open Attachments

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Example #1:  The bridge girders are the same size, as marked.

Statements Reasons1.  1. Given2. 2. Given3. 3. Reflexive Property of ≅4. 4. SSS

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Example #2:

Statements     Reasons1.     1.2.     2.3.     3.4.     4.

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Example #3:

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Example #4:

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So, here are the two triangle congruence shortcuts for today!

SSS

Side-Side-Side SAS

Side-Angle-Side(The angle is included within the sides.)

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HOMEWORK:p. 208 #2-13,

20-26

• Attachments

Triangles.gsp

SMART Notebook

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