Tangential Arc (2D)
Draw a tangential arc by clicking three radius points.
- On the  tab, in the Lines
        group, select tab, in the Lines
        group, select Smart > Smart > Tangential Arc - Vertex G4,
            G4Plant Tangential Arc - Vertex G4,
            G4Plant
 Line > Line > Tangential Arc - Vertex BD, InD Tangential Arc - Vertex BD, InD
 Closed > Closed > Tangential Arc - Vertex ED, HD Tangential Arc - Vertex ED, HD
 
- Select the line properties.  Line Properties Line Properties
- Click the first point on the tangential line, or the end point of the line.
         
- The arc is drawn tangentially from the selected point to both sides as the cursor is moved.
         
- Click the end point of the arc.
- Select Confirm.
