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The angles of a triangle always sum to 180 degrees.

Author:Andrea Siwik

New Resources

  • Proving Triangles Similar: Multistep Transformations
  • Folding door
  • רישום חופשי
  • Thales' Intercept Theorem
  • Position Vector and Derivative Vector

Discover Resources

  • Sin, Cos (and Tan) from Triangle in Unit Circle v4
  • {"Antiprism", 5}
  • Graph the Line(1)
  • Patrulater-MN pe DC-conc
  • sas.ggb
  • 探究三角形的面積

Discover Topics

  • Geometric Distribution
  • Root
  • Parabola
  • Trigonometric Functions
  • Expected Value
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