After starting the Ellipse command, proceed as follows.
1 | In the Type drop-down list, select 2 vertices and 1 point. |
2 | Specify the two vertices and the through point by clicking or
using Snap. To change the selected point, right-click on Point, select Reset in the context menu and specify the new center. |
3 | Click or to confirm your selections and create the curve. Click to discard your changes. |