This is the "4.3: Proving Triangles (SSS and SAS)" page of the "Geometry Chapter 4" guide.
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Geometry Chapter 4   Tags: geometry, mahlman, math  

Last Updated: Jan 19, 2011 URL: Print Guide RSS Updates

4.3: Proving Triangles (SSS and SAS) Print Page


Side-Side-Side (SSS) Congruent Postulate

Side-Angle-Side (SAS) Congruent Postulate

When all sides are congruent to another triangle, then the two triangles are congruent. When 2 sides and their INCLUDED angle are congruent to another 2 sides and INCLUDED angle, then the two triangles are congruent.

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