Forum Geometricorum


Crux Mathematicorum with Mathematical Mayhem
Bernard Gibert's Cubics in the Triangle Plane
Dick Klingens' Geometry site [in Dutch].

Hyacinthos group on Triangle Geometry

Kimberling's Encyclopedia of Triangle Centers.

POLYA: Cooperative Solutions of Difficult Problems in Elementary Mathematics


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Last modified by Paul Yiu, Ootobter, 2003.