Triangle Theorems

Author:
William Rodgers
This book includes several theorems that are important for understanding triangles. Use each applet to discover rules about a triangles angles and sides.

  • Triangle Sum Theorem

    Triangle Sum Theorem

  • Right Triangles

    Right Triangles

  • Isosceles Triangles

    Isosceles Triangles

  • Triangle Inequality Theorem

    Triangle Inequality Theorem

  • Exterior Angle Theorem

    Exterior Angle Theorem

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Triangle Sum Theorem

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