GeoGebra
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  • Proofs
      Vertical Angle Theorem
      Two-column proof (Corresponding Angles)
      Two-column Proof (Alt Int. Angles)
      Same-side Interior Angles Postulate
      Converse of Same Side Interior Angles Postulate
      Prove Converse of Alternate Interior Angles Theorem
      Converse of Corresponding Angles Theorem
      Proving Lines Parallel #1

Proofs

Author:
M. Herring, Jenny Secor

  • Vertical Angle Theorem

  • Two-column proof (Corresponding Angles)

  • Two-column Proof (Alt Int. Angles)

  • Same-side Interior Angles Postulate

  • Converse of Same Side Interior Angles Postulate

  • Prove Converse of Alternate Interior Angles Theorem

  • Converse of Corresponding Angles Theorem

  • Proving Lines Parallel #1

Next
Vertical Angle Theorem

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