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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°.
GeoGebra
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