Resizing Arc Walls

You can resize arc walls using middle and end controls.

1. Select an arc wall.
   
2. Drag the end controls to change the arc length.
3. To change the arc radius while keeping it concentric, select Keep Concentric on the Options Bar.

   Leave this option deselected to retain existing end conditions, such as endpoint location or tangency to a straight wall.

4. Drag the middle control.