[Free Registration/Login may be required to access all resource tools.] Prove two triangles are congruent with the Side-Side-Side shortcut.

Discover if two triangles are congruent it means that all corresponding angle pairs and all corresponding sides are congruent.

Given two triangles with some of their side measures, determine whether the triangles are similar or not.

As a resource for teachers, an activity of how to connect Venn Diagrams with the five methods of proving triangles congruent - SSS, SAS, ASA, AAS, HL - is explained.

In this task, a student has learned the SSS and SAS congruence tests for triangles and wonders if these tests might work for parallelograms. Aligns with G-CO.C.11 and G-SRT.B.5

This lesson focuses on triangle congruence; it shows the ways to prove that triangles are congruent.

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[Free Registration/Login may be required to access all resource tools.] This study guide looks at similar polygons, scale factor (ratio), and triangle similarity.