To draw an arc by specifying three points

1. Do one of the following:
• Choose Insert > Arc.
• On the Draw 2D toolbar, click the 3-Point Arc tool ().
• Type arc and then press Enter.
2. Specify the start point.
3. Specify a second point.
4. Specify the endpoint.

Start point (A), second point (B), and endpoint (C).

The prompt box provides additional options for drawing arcs. For example, after you specify the start point of an arc, you can choose Angle, Center, Direction, End, or Radius. You can select the options in a different order as well. For instance, you can draw an arc by specifying its start point, endpoint, and radius, or you can specify the start point, radius, and then endpoint.