Translations:Basic Sketcher Tutorial/77/en

Constraining a sketch can be done in many different ways. In general, it is recommended to use geometrical constraints first, and minimize the number of datum constraints, as this simplifies the task of the internal constraint solver. To investigate this, repeat this example, now adding the constraints in different order.
 * First constrain the construction lines before drawing the arcs.
 * Or constrain the size of the arcs before making them tangent.
 * Or set the angle of the construction lines before adding more elements.
 * Try using other construction geometry.