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Triangle Exterior Angle Theorem

Author:Tim Malecek
Topic:Angles, Scalene Triangles
Move the vertices of the triangle to explore what happens to the angles.

New Resources

  • Other Variations of Cosine
  • Domain of f(x,y)
  • bewijs stelling van Pythagoras
  • Tracing an Ellipse Using Two Circles
  • Rule of Sarrus - Determinant of a 3×3 Matrix

Discover Resources

  • Venn Diagram Puzzle
  • Trig Complementary Angle Relationships
  • Triangle angle and side relationships
  • Quadrilaterals ABCD and EFGH Dilation

Discover Topics

  • Pyramid
  • Interest Calculation
  • LCM and GCD
  • Geometric Mean
  • Circumcircle or Circumscribed Circle
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