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Videos, worksheets, games and activities to help Geometry students learn geometry proofs and how to use CPCTC, Two-Column Proofs, FlowChart Proofs and Proof by Contradiction.

Related Topics:More Grade 9 and Grade 10 math

More Geometry Lessons

How to use the principle that corresponding parts of congruent triangles are congruent, or CPCTC.

This video offers a look at two triangle proofs that involve the CPCTC theorem.

How do we use CPCTC?

How to organize a two column proof.

This video introduces the structure of 2 column proofs and works through three examples.

How to outline a flowchart proof. Using flow charts to do proofs