Keywords: Orthosystem.png File Orthosystem SVG svg Diagram for http //en wikipedia org/wiki/Orthocentric_system Eukleides code <pre> box -2 -2 8 6 3 A B C triangle H orthocenter A B C draw H dot 4 mark C intersection line A B line H C B right x point line B H 6 mark x intersection line A C line H B A right y point line A H 6 mark y intersection line B C line H A B right draw C dot 4 draw B dot 4 draw A dot 4 thickness 3 draw A C H draw line A B dotted draw line A C dotted draw line B C dotted draw line H A dotted draw line H B dotted draw line H C dotted </pre> Triangle geometry Drawings by Magister Mathematicae |