How to Write a Proof for Congruent Triangles Using SAS

The video tutorial explains how to prove triangle congruence using given information and the side-angle-side (SAS) theorem. It emphasizes the importance of identifying given congruences and angles, and how to calculate missing angles in triangles. The tutorial concludes with a proof of congruence using the third angle theorem.

What conclusion can be drawn if two angles in a triangle are equal?

Describe the third angle theorem as explained by the teacher.

What is the final conclusion about the congruence of triangle PRT and triangle DEF?