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Proofs

Author:
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

New Resources

  • Othographic Views of a Solid
  • G_10.04 Parallel and perpendicular lines_1a
  • G_7.03 Proving triangles similar
  • G_3.01 Triangles and angles_2
  • Ripple Effect

Discover Resources

  • number 37
  • Exercise 5
  • Angle Relationships in Triangles
  • Demo: zooming text using \scalebox{}
  • Even - v2 - CUEBA0050

Discover Topics

  • Pythagoras or Pythagorean Theorem
  • Logarithmic Functions
  • Rotation
  • Vectors 2D (Two-Dimensional)
  • Differential Calculus

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