Draw a circle by specifying its center point and the radius. 
- Select a tool that allows for a circle. For example, click Architecture tab Build panel Build panel Wall drop-down Wall drop-down (Wall: Architectural). (Wall: Architectural).
 
-  Click Modify | Place Lines tab (or respective Modify | Place <Element> tab or Modify | Create <Element> tab) Draw panel Draw panel  (Circle). (Circle).
- On the Options Bar: - Optionally, for Offset, specify a value. 
- Optionally, select Radius and specify a value. If you specify a radius, placing a circle in the drawing area requires only 1 click. Note: If you specify a radius, the Offset option is overridden.  
 
- Click in the drawing area to place the circle. If you have not already specified a radius, move the cursor and click to complete the circle. Note: You can also use listening dimensions to enter a value for the radius. After you click in the drawing area to place the circle, type the value of the radius and press Enter.