Concyclic Circumcenters

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A triangle is divided by its three medians into six smaller triangles. Their circumcenters lie on a circle.
Contributed by: Jay Warendorff (March 2011)
Open content licensed under CC BY-NC-SA
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For more information, see:
F. van Lamoen, "Circumcenters on a Circle: 10830," The American Mathematical Monthly 109(4), 2002 pp. 396-397.
Permanent Citation
"Concyclic Circumcenters"
http://demonstrations.wolfram.com/ConcyclicCircumcenters/
Wolfram Demonstrations Project
Published: March 7 2011