Area of triangles and parallelograms

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• Offline Activity (.zip)

• GeoGebra Files

  1. An empty parallelogram is shown on the left. Use any 1 or more of the colored polygons to help find its area. (.ggb)
     
  2. Change the parallelogram by dragging the green points at its vertices. Then use any 1 or more of the colored polygons to help find its area. (.ggb)