The Triangle
formed by joining the Midpoints of the sides of a
Triangle
. The medial triangle is sometimes also called the Auxiliary Triangle
(Dixon 1991). The medial triangle has Trilinear Coordinates

The medial triangle of the medial triangle of a Triangle is similar to .

**References**

Coxeter, H. S. M. and Greitzer, S. L. *Geometry Revisited.* Washington, DC: Math. Assoc. Amer., pp. 18-20,
1967.

Dixon, R. *Mathographics.* New York: Dover, p. 56, 1991.

© 1996-9

1999-05-26