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Jay Warendorff
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Demonstrations 1  20 of 272
Comparing Sorting Algorithms on RainbowColored Bar Charts
Triangle Altitudes and Circumradius
Another Variant of Kosnita's Theorem
The Begonia Point
An Application of the GergonneEuler Theorem
The Knight's Tour
The Excentral Triangle and a Related Hexagon
Four Concyclic Points
Cross's Theorem
A Concurrency from Midpoints of Arcs of the Circumcircle
A Concurrency of Lines through Points of Tangency with Excircles
A Concurrency from Six Pedal Points
Zeckendorf Representation of Integers
A 2011 IMO Tangency Problem
The Fuhrmann Circle
A Chinese Knight's Tour
The Triangles Formed by the Endpoints and Midpoints of Cevians
An Angle Bisection
Three Concyclic Sets of Points Associated with the Orthic Triangle
The SeeSaw Lemma
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