In a given Acute-angled Triangle , Inscribe another Triangle whose Perimeter is as small as possible. The answer is the Orthic Triangle of .

**References**

Coxeter, H. S. M. and Greitzer, S. L. *Geometry Revisited.* Washington, DC: Math. Assoc. Amer.,
pp. 88-89, 1967.

© 1996-9

1999-05-26