To draw an arc by specifying its start point, center point, and endpoint

1. Do one of the following:
• Choose Insert > Arc.
• On the Draw 2D toolbar, click the Arc Start-Center-End tool ().
• Type arc and then press Enter.
2. Specify the start point.
3. In the prompt box, choose Center.
4. Specify the center point.
5. Specify the endpoint.

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