triangle centerCenterOfATriangle2001-11-01 21:46:382005-09-24 18:42:21Definition\usepackage{graphicx}
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\newcommand{\figuraex}[2]{\begin{center}\includegraphics[#2]{#1}\end{center}}On every triangle there are points where special lines or circles intersect, and those points usually have very interesting geometrical properties. Such points are called \emph{triangle centers.}
Some examples of triangle centers are incenter, orthocenter, centroid, circumcenter, excenters, Feuerbach point, Fermat points, etc.
For an online reference please check the
\PMlinkexternal{Triangle Centers}{http://faculty.evansville.edu/ck6/tcenters/} page.
Here is a drawing showing the most important lines and centers of a triangle
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{\footnotesize(XEukleides \PMlinktofile{source code}{triangulo-rev.euk} for the drawing)}