Rectangle (2D)
- On the  tab, in the Lines
        group, click tab, in the Lines
        group, click Rectangle. Rectangle.
- Select the line properties  Line properties. Line properties.
- Draw a polyline by clicking two points.
- Click the third point perpendicularly to the previous one.

 tab, in the Lines
        group, click
 tab, in the Lines
        group, click  Rectangle.
Rectangle. Line properties.
        Line properties.