4.2 Triangle Congruence by SSS and SAS 2011
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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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