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Van Aubel's Theorem for Quadrilaterals
Construct squares on the outside of the four sides of a quadrilateral and draw lines between the centers of the opposite squares. Then the two lines have the same length and are perpendicular.
Contributed by:
Jay Warendorff
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Van Aubel's Theorem
(
Wolfram
MathWorld
)
PERMANENT CITATION
"
Van Aubel's Theorem for Quadrilaterals
" from
the Wolfram Demonstrations Project
http://demonstrations.wolfram.com/VanAubelsTheoremForQuadrilaterals/
Contributed by:
Jay Warendorff
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