My homepage at
http://mysite.mweb.co.za/residents/profmd/homepage4.htmlhas been updated with an article that generalizes the familiar
'opposite
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
http://math.kennesaw.edu/~mdevilli/JavaGSPLinks.htm
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
Turnbull
article.