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.

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

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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

    Page 1Page 2Page 3Page 4Page 5Page 6Page 7Page 8Page 9Page 10Page 11Page 12Attachments Page 1


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