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  • Re: Concurrent Euler lines

    Dear Hung, This is X14639. Nice point, intersections of many lines! Best regards, Francisco Javier.

    garciacapitan 8 hours ago
  • Concurrent Euler lines

    Dear geometers, Let ABC be a triangle with orthocenter H. Two Fermat points F1 and F2. Let Ha1 and Ha2 be the orthocenters of F1BC and F2BC. Let da be the

    hung100486 10 hours ago
  • Re: Coxial circles from pedal circles

    Thank you very much for your interest Mr Francisco Javier. Best regards, Tran Quang Hung. 2018-01-22 12:54 GMT+07:00 garciacapitan@...

    hung100486 14 hours ago
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Group Description

We discuss topics on Advanced Plane Geometry.

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  • 170
  • Geometry
  • May 7, 2013
  • English

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