Fall 2016 - Professor Kate Poirier

The Theorem of Menelaus by Jodel Delectable

Let triangle ABC be an ordinary triangle. The Menelaus points D,E, and F for triangle ABC are collinear if and only if

[AD/DB] * [BE/EC] * [FC/AF]=1.

 

Link:  https://www.geogebra.org/o/AutVRjKZ

1 Comment

  1. Mei Zhu

    [AD/DB] * [BE/EC] * [FC/AF]=-1 ?

Leave a Reply

Your email address will not be published. Required fields are marked *