CAD Tutorial: Solidworks tutorial.- Sketch Relations -Part III - Circles, mid-point and Midplane Extrude

When you are constructiong a part in SolidWorks it isalways desirable to completely define its sketches - not only by dimensioning it but also by setting relations between sketch entities and properly positioning it relative to the sketch plane. This article is about line-to-point and circle-to-circle relations. Mid-point, coincindent, coradial, concentric relation of SW2008 and SW2009 - it's all here.