Circle by Clicking a Center Point and a Radius Point (2D)
Add a circle by clicking a center point and a single radius point. When adding a circle, you can select auxiliary functions to draw a circle in relation to certain line elements.
- On the  tab, in the Lines
        group, click tab, in the Lines
        group, click Circle. Circle.
- Select the line properties.  Line Properties Line Properties
- Click the center point, and click the radius point.

