Lesson Plan: Specific Types of Parallelograms

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• Offline Activity (.zip)

• GeoGebra Files

  1. Interactive sheet "Parallelogram, definition, characterization and specific types of parallelograms" (.ggb)
     
  2. Problem 3: Demonstrate that middles of the sides of a convex quadrilateral having congruent diagonals, determine a rhombus. (.ggb)
     
  3. Problem 4: Demonstrate that the middle points of the sides of a orthodiagonal quadrilateral, determine a rectangle. (.ggb)
     
  4. Problem 5: Demonstrate that the midpoints of the sides of a rectangle, form a rhombus, and the midpoints of the sides of a rhombus, form a rectangle. (.ggb)