Dynamic Geometry Problem 1445: Van Aubel's theorem, Quadrilateral and Four Squares

Given a quadrilateral ABCD and the squares constructed externally on each side, then the two line segments between the centers of opposite squares are congruent and are perpendicular.


Static Diagram of Van Aubel's Theorem

Geometry Problem 1445: Van Aubel's theorem, Quadrilateral and Four Squares, Centers. Using GeoGebra


Poster of Problem 1445 using iPad Apps

Poster of Geometry Problem 1445: Van Aubel's theorem, Quadrilateral and Four Squares, Centers. Using iPad

 

Classroom Resource:
Interactive step-by-step animation using GeoGebra

This step-by-step interactive illustration was created with GeoGebra.

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  • To stop/play the animation: click/tap the icon in the lower left corner.
  • To go to first step: click/tap the "Go to step 1" button.
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