Geometry Proof: Van Aubel's Theorem

Follow the proof, step-by-step, of Van Aubel's Theorem, which states that given any planar quadrilateral, lines connecting the centers of opposite squares aligned with the sides of the figure will be the same length and perpendicular. A brightly colored interactive diagram shows a sample figure and has buttons to click forward, back, or to any step in the proof. 

8th - 10th Math 5 Views 4 Downloads
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