Software for drawing basic geometry
Solution 1:
You could try C.a.R. It's free, cross platform and open source.
C.a.R. is a dynamic geometry program simulating compass and ruler constructions and much more on a computer.
Solution 2:
GeoGebra: it comes in multiple languages, is easy to use but powerful, and can export to LaTeX, SVG and other formats. It also supports applets and other tools.
