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Triangle Sum Theorem

Author:Anthony DiLaura
Prove that the 3 interior angles of a triangle add to equal 180 degrees.

New Resources

  • גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
  • Building Figures with Set Areas
  • Building Triangles with Set Areas
  • Area of a Circle Illustrated
  • Slope Between 2 Points (Phase 2)

Discover Resources

  • Bisection Method
  • CCSS High School: Functions (Interpreting Functions)
  • What is Division I
  • Congruence cases
  • Adding areas of five squares

Discover Topics

  • Sine
  • Numbers
  • Fractal Geometry
  • Complex Numbers
  • Secant Line or Secant
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