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Curated OER
Using Congruent Triangles
In this geometry instructional activity, 10th graders use basic knowledge of congruent triangles (CPCTC) to prove that the given triangles are congruent. The one page instructional activity contains four problems. Answers are...
Sophia Learning
Sophia: Using Corresponding Parts of Congruent Triangles
This lesson will demonstrate the use of CPCTC in triangle congruency proofs.
Sophia Learning
Sophia: Cpctc: Lesson 2
This lesson will demonstrate the use of CPCTC in triangle congruencey proofs. It is 2 of 4 in the series titled "CPCTC."