Name _______________________________________________ Date ___________________________
I can analyze and apply properties of triangle congruence and polygons.
Essential question:
What can you conclude about two triangles when you know that two pairs of corresponding
sides and the corresponding included angles are congruent?
Using the side-angle-side congruence theorem
Example 1: Using the SAS Congruence Theorem
Unit 6 - Congruent Triangles Investigation 2: Triangle Congruency
Lesson 1: Proving Triangle Congruence by SAS
Example 2: Using SAS and Properties of Shapes
Example 3: Solving Real-Life Problems
You are making a canvas sign to hand on the triangular
portion of the barn wall shown in the picture. You think
you can use two identical triangular sheets of canvas.
You know that RP ⊥ QS and PQ ≅ PS. Use the SAS
Congruence Theorem to show that ∆PQR ≅ ∆PSR.