20:09
in making a square using a sketch can be done by three methods, 1) using 2 points, 2) using three dots, three) from the center and then determine the next two points, in the following example I use two point method.
after making a square give constraints on both, constraint serves to maintain the logic of a model according to the type of constraint is chosen, there are various types of constraint that can be selected, to launch a constraint, click the icon on the toolbar of the available constraints
then, select the appropriate constraints, in this example I use the parallel constraint, constraint-click way to make two parallel...
