Two Column Proofs: Lesson (Geometry Concepts)

Discover more at www.ck12.org: http://www.ck12.org/geometry/Two-Column-Proofs/. 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: http://www.ck12.org/geometry/Conjectures-and-Counterexamples/ 2. If-Then Statements: http://www.ck12.org/geometry/If-Then-Statements/ 3. Converse, Inverse, and Contrapositive: http://www.ck12.org/geometry/Converse-Inverse-and-Contrapositive/ 4. Inductive Reasoning from Patterns: http://www.ck12.org/geometry/Inductive-Reasoning-from-Patterns/ 5. Deductive Reasoning: http://www.ck12.org/geometry/Deductive-Reasoning/ 6. Truth Tables: http://www.ck12.org/geometry/Truth-Tables/ 7. Properties of Equality and Congruence: http://www.ck12.org/geometry/Properties-of-Equality-and-Congruence/ 8. Two-Column Proofs: http://www.ck12.org/geometry/Two-Column-Proofs/ Watch the whole series of CK-12's Geometry videos: https://www.youtube.com/playlist?list=PLhWx3LZhlpsfZglz0JcMu7AMqcROsISuG