Drawing a Three-Point Arc

1. Click Three-Point Arc in the Sketch group.
2. Click to set the start point of the arc.If the start point is on another line, arc, or spline, then the arc will initially be drawn tangent to that line, arc, or spline.You can dimension the point relative to other sketch objects.
3. Click to set the end point of the arc.
4. Click to set the arc's radius.You can dimension the chord angle or radius.The arc will snap to tangent objects.

The common sketch options are described in Sketch Options.