Area of a Trapezoid

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• Offline Activity (.zip)

• GeoGebra Files

  1. Deriving the formula using a parallelogram: (.ggb)
     
  2. Deriving the formula using a rectangle and a triangle: (.ggb)
     
  3. Applet 3 (.ggb)
     
  4. Deriving the formula using two triangles: (.ggb)