L6.1 Polygon Interior Angle Sum

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• Offline Activity (.zip)

• GeoGebra Files

  1. Explore Convex Polygon Angles' Measure Sum (.ggb)
     
  2. Explore Concave Polygon Angles' Measure Sum (.ggb)
     
  3. CHANGE the Polygons and recheck Concave Polygon Angles' Measure Sum (.ggb)
     
  4. Draw in the auxiliary segments: diagonals. (.ggb)
     
  5. Draw in the auxiliary segments: diagonals. (.ggb)