http://www.geogebratube.org/material/show/id/85883
(žarki - podobni trikotniki)
http://www.geogebra.org/en/upload/files/001FRANCAIS/DMentrard/Maths/GEOMETRIE/Relatriang.html
(Tales v pravkotnem triktonku)Interactive challenge
You can change sunlight and red dots on this applet
http://dmentrard.free.fr/GEOGEBRA/index.htm
http://dmentrard.free.fr/GEOGEBRA/index.htm
You can change sunlight and red dots on this applet
http://dmentrard.free.fr/GEOGEBRA/index.htm
http://dmentrard.free.fr/GEOGEBRA/index.htm
Narejeno z GeoGebro – Dodal/a Daniel Mentrard
