- 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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