After geometric features have been extracted, you can quickly generate lines and arcs based on the sketch by holding down the Shift key and using a lasso selection.
For connecting two sketch segments at a corner, hold down the Ctrl key, then click and drag the left mouse button to create a lasso selection. Ensure the selection area encompasses the end points of both segments.
After the lasso selection, the lines will become connected. Repeating the lasso operation on this connection will convert the corner into a fillet. You can then set the value for the radius (R).
After setting the Radius (R) value, click “OK” to confirm and complete the operation.