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  1. Triangle Sum Theorem: 4 Proofs
    1. Triangle Sum Theorem
    2. Rotation Proof
    3. Translation Proof
    4. Reflection Proof
    5. Parallel Lines Proof

    Triangle Sum Theorem: 4 Proofs

    Author:linzi_bullard
    Topic:Geometry
    Triangle Angle Sum Theorem Proofs
    Triangle Sum Theorem: 4 Proofs

    Table of Contents

    • Triangle Sum Theorem

      • Triangle Angle Sum Theorem
    • Rotation Proof

      • Proof By Rotation (v1)
      • Visualizing the Angle Sum in a Triangle
    • Translation Proof

      • Proof by Translation
      • Proof by Translation (v2)
    • Reflection Proof

      • Reflection Proof
    • Parallel Lines Proof

      • Triangle Sum Theorem
    Next
    Triangle Angle Sum Theorem

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