If you use the Arc option of the Draw Feature Line command prior to drawing any segments, it defaults to drawing a three-point arc. The following prompt is displayed:
Specify arc second point or [Direction]:
Specify quadrant (1-4) or [aZimuth/Angle]:
Use your mouse to click one of the four bearing quadrants as indicated by the temporary graphics, or enter the quadrant number at the command line.
After defining the quadrant, the following prompt is displayed:
Specify bearing or [aZimuth/Angle]:
Use your mouse to specify the bearing or enter it at the command line. Use the DD.MMSS format.
Specify azimuth or [Bearing/Angle]:
Use your mouse to specify the azimuth or enter it at the command line. Use the DD.MMSS format.
Specify arc end point or [Radius/Secondpnt/Line]:
See To Draw Curved Segments of Feature Lines for more information.