CORNER allows you to indicate the radius from a vertex
(or corner) of the polygon.

Indicate the center of the polygon, using an option
from the Position Menu.

Indicate whether or not you want to group the entities.
If you choose YES, enter a group name and press <Enter>. 
If you choose NO , the system proceeds to create the line
entities forming the polygon, using the current attributes
in effect.

In 2-D construction mode, the reference point is projected
to the current construction plane, and the polygon is 
created in the current construction plane.

In 3-D construction mode, the polygon is created in the
plane that is parallel to the current construction 
plane and that passes through the indicated reference
point.
