Two Column Proofs: Lesson (Geometry Concepts)

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Here you'll learn how to write a two-column geometric proof.
This video gives more detail about the mathematical principles presented in Two Column Proofs.
This is part of CK-12’s Geometry: Reasoning and Proof. See more at:
1. Conjectures and Counterexamples:
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2. If-Then Statements:
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3. Converse, Inverse, and Contrapositive:
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4. Inductive Reasoning from Patterns:
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5. Deductive Reasoning:
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6. Truth Tables:
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7. Properties of Equality and Congruence:
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8. Two-Column Proofs:
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Watch the whole series of CK-12's Geometry videos: • CK-12 Geometry Concepts