Triangle congruence by **SSS** and **SAS** postulates is a fundamental concept in geometry. This lesson covers the **Side-Side-Side (SSS)** and **Side-Angle-Side (SAS)** postulates for proving triangle congruence, providing definitions, examples, and practice problems.

Key points:

**SSS postulate**: Triangles are congruent if all three sides are congruent**SAS postulate**: Triangles are congruent if two sides and the included angle are congruent- Practice problems demonstrate how to apply these postulates in various scenarios
- Understanding when to use SSS or SAS is crucial for proving triangle congruence