Proving Triangles Congruent by Side-Side-Side Postulate

In this video, you will learn about the Side-Side-Side (SSS) Postulate. The SSS Postulate can be used to prove two triangles are congruent when three sides of one triangle are congruent to the corresponding sides of another triangle. Click the player button to begin.

View a transcript of this video.

Proving Triangles Congruent by Side-Angle-Side Postulate

In this video, you will learn about the Side-Angle-Side (SAS) Postulate. The SAS Postulate can be used to prove two triangles are congruent when two sides and the included angles are congruent to the corresponding sides and included angle of another triangle. Click the player button to begin.

View a transcript of this video.

 

Triangle Congruence: SSS and SAS Review

Now that you have learned about the SSS and SAS Congruence Postulates, review your knowledge in this interactivity. Click the player button to get started.