AutoCAD provides five way to draw circles with the Circle command, but none of them are based on the circumference or area of circles. There is a workaround:
1. Draw the circle with the Circle command. The radius does not matter, but the centerpoint should be in the correct location.
2. Open the Properties window, and then change the value of the circle's area or circumference. The circle changes in size to meet the new specification, maintaining its centerpoint. (AutoCAD performs the pi-related math for you.)