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CPCTC Lesson - Congruent Parts of Congurent Triangle


In this lesson, students will learn how to use the CPCTC theorem (Congruent Parts of Congruent Triangles are Congruent) in order to complete a proof. They will first use one of the 5 triangle congruence theorems (SSS, SAS, AAS, ASA, HL) in order to use the CPCTC. It is a great lesson putting together everything they have learned thus far in the unit.

Learning Targets: 
Students will be able to prove that two triangles are congruent
Students will be able to use the CPCTC theorem to prove a characteristic about congruent triangles
Content Area: 
Resource Type: 
Creative Commons Licence
Common Core Math
Common Core Math: