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Sum of Interior angle measures

Author:Sheryl Hughes

Prove the Sum

Construct a triangle. Compute the sum of the interior angles.

New Resources

  • Rectangle Construction Template (V2)
  • Graph of Slopes of Tangent Lines
  • Rule of Sarrus - Determinant of a 3×3 Matrix
  • bewijs stelling van Pythagoras
  • Regular Polygons and Equivalent Triangles

Discover Resources

  • Unit Circle Introduction
  • PaulKleeThreshholds
  • MG Nine-Point Circle
  • cilindro
  • parallelogram investigation
  • Krueger_H6

Discover Topics

  • Trapezoid
  • Arithmetic Operations
  • Logarithmic Functions
  • Prism
  • Intersection
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