Click this icon to insert an arc by specifying its origin, starting angle and ending angle.
To use this tool:
1. Turn off your constraints.
2. Click on the location where you wish to place the center point or origin of the arc.
3. Move you mouse away from the center point to change the radius.
4. Click on the location where you wish to start the arc.
5. Move your mouse across to the location where you wish to end the arc. The arc will always be created in a counter‐clockwise direction.
If you enter a radius or a diameter the arc will be displayed as a full circle until you select the location for the start and the end point.
If you select the start and end angle, you will need to click on the center point and then click once for the start point and once for the end point. If the start and end angle have been entered it does not matter where you click to place them, since the length will be determined by the set angles.