Sketcher > Creating Sketcher Geometry > To Create an Arc Using 3 Point/Tangent End
  
To Create an Arc Using 3 Point/Tangent End
1. Click Sketch and then click the arrow next to Arc.
2. Click 3-Point / Tangent End.
3. Select a point for the first endpoint.
4. Select the second endpoint. The arc is previewed.
5. Drag the arc to the desired size and click to place it. The arc is created.