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Topic: Fermat-Torricelli Point + Cyclic Quad Generalizations papers +

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Michael de Villiers

Posts: 281
Registered: 12/3/04
Fermat-Torricelli Point + Cyclic Quad Generalizations papers +

Posted: Jun 11, 2009 9:21 AM
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My homepage at
has been updated with an article that generalizes the familiar
supplementary angles' result of cyclic quadrilaterals, namely, "A
Unifying Generalization of Turnbull's Theorem", the usual bi-monthly
mathematical/mathematics education quote and cartoon at the bottom.

My dynamic geometry sketches Link at
has been updated with 'Fermat-Torricelli Point Generalizations' and
'Para-Hexagon Concurrency Theorem', and three new investigations under
the link Student Explorations ? two of these are related to the

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