### As you start solving proofs, you will realize the importance of setting up congruence statements out of two congruent polygons, or how to detemine the congruent pairs out of a congruent statement. In this activity you will be drilled with the purpose that you review those skills. It starts with an introduction that very clearly shows how this process takes place, highlighting the corresponding parts in the statements or in the figures, depending of the case of what you need to do. The introduction starts automaticaly, and the questions require that you click anywhere on the screen. The questions are multiple choice. Once you answer, you may advance to the next slide or the slide will do it after a few seconds.

** Lesson's Content **

** Lesson's Glossary **

**Angle-angle-side (AAS) congruence states that if any two consecutive angles of a triangle are equal in measure to two consecutive angles of another triangle and a pair of corresponding not included sides to these angles is congruent; then the two triangles are congruent; that is, they have exactly the same shape and size.**

**Angle-side-angle (ASA) congruence states that if any two angles of a triangle are equal in measure to two angles of another triangle and the side in between each pair of angles have the same length, then the two triangles are congruent; that is, they have exactly the same shape and size.**

**Included angle **

The angle made by two intersecting sides of a polygon.

**Included side **

The side between two consecutive angles in a polygon.

Side-angle-side (SAS) congruence states that if any two sides of a triangle are equal in length to two sides of another triangle and the angles between each pair of sides have the same measure, then the two triangles are congruent; that is, they have exactly the same shape and size.

The side-side-side (SSS) congruence states that if the three sides of one triangle have the same lengths as the three sides of another triangle, then the two triangles are congruent.

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