Now you know what the mathematics of geometric construction is about and how to use the basic buttons, try your skills at some important constructions. You will have to construct perpendicular or parallel lines, or various triangles. The difficulty of each task will often depend on which buttons have been made available to you - and, more importantly, which ones have not!.
There will be no hints but the tasks are progressive.
Every task uses these buttons:


and also uses one or more of these specialised buttons:

and occasionally: