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A Triangle's Angles

Author:Lndsay Flanagan, Steve Kifowit
The sum of the measures of the interior angles of any triangle is 180°.

New Resources

  • Building Triangles with Set Areas
  • Building Figures with Set Areas
  • Regular Polygons and Equivalent Triangles
  • רישום חופשי
  • Parallelogram Anatomy

Discover Resources

  • Creating a golden section rectangle
  • Rhombus with diagonals
  • Figure 12.1
  • Test Math
  • Battleshio Composition Example

Discover Topics

  • Rhombus
  • Inequalities
  • Constructions
  • Differential Equation
  • Pythagoras or Pythagorean Theorem
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