Stuck trying to remember the formal language of a geometric proof? Never fear, this handout has them all ready to go. The reasons are sectioned by topic so this handy guide is ready when you are to tackle those two column proofs. 

Concepts

geometric proofs, proofs, two-column proofs

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Additional Tags

math

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Instructional Ideas

• Post online as a reference sheet

Classroom Considerations

• Lists, but does not explain the reasons

Pros

• Neatly organized resource

Cons

• None

Common Core

HSG-CO.C.9 HSG-CO.C.10 HSG-CO.C.11