Lines of the triangle

http://dmentrard.free.fr/GEOGEBRA/Maths/Export5/LinetriangMD.html
[url=http://dmentrard.free.fr/GEOGEBRA/Maths/Export5/LinetriangMD.html]http://dmentrard.free.fr/GEOGEBRA/Maths/Export5/LinetriangMD.html[/url]
– Daniel Mentrard

Information: Lines of the triangle