Area of usual figures (a multifiles applet with Geogebra4.25 in html5)

Click on picture to launch the ggb applet

http://dmentrard.free.fr/GEOGEBRA/Maths/Geometrie/Surfaces/accueilsurf.htm

 

A Geogebra multi applets in html5 with the 4.25 version 

  http://dmentrard.free.fr/GEOGEBRA/index.html