Vecten's Collinearity: What is it about?
|
| Buy this applet What if applet does not run? |
|Activities| |Contact| |Front page| |Contents| |Store| |Geometry|
Copyright © 1996-2012 Alexander BogomolnyThe following curious fact has been communicated to me by Professor Ricardo Barroso Campos from the University of Sevilla, Spain.
| In any triangle, the two Vecten points and the center of the 9-points circle are collinear. |
A trigonometric proof in trilinear coordinates could be found at Prof. Campos' site. He credits Montes Valderrama (2004) with the discovery of the fact.
Michel Cabart came up with a generalization and a simple proof in barycentric coordinates.
|Activities| |Contact| |Front page| |Contents| |Geometry| |Store|
Copyright © 1996-2012 Alexander Bogomolny| 40619843 |

