Applet 1.7 : Mid points of a Quadrilateral form a Parallelogram

  • Click on the panel below at any four points to generate A, B, C, D
  • Click on the button show ABCD to draw the quadrilateral
  • Click on the button show mid points P, Q, R, S to generate mid-points of sides
  • Click on the button Parallelogram PQRS, to draw the quadrilateral  PQRS
  • You can move any of the points A, B, C, D to see that PQRS retains its shape,  a parallelogram

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