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Collinearity of an Incenter and Two Circumcenters


	Let ABC be a triangle with excentral triangle A'B'C'. Let I be the incenter and O the circumcenter of ABC, and let be the circumcenter of A'B'C'. Then I, O, and are collinear and O bisects .


	Contributed by: Jay Warendorff

"Collinearity of an Incenter and Two Circumcenters" from The Wolfram Demonstrations Project
http://demonstrations.wolfram.com/CollinearityOfAnIncenterAndTwoCircumcenters/

Contributed by: Jay Warendorff

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