Creating a 3.8-radius circle around point (40, 0)

• Choose the option Geometry->Create->Object->Circle.
• The center of the circle (40, 0) is a point that already exists. To select it, go to Contextual->Join Ctrl-a in the mouse menu (right-click). The pointer will become a square, which means that you may click an existing point.
• The Enter Normal window appears. Set the normal as Positive Z and press OK.
• Enter the radius of the circle. The radius is 3.8 (In GiD the decimals are entered with a point, not a comma). Two circumferences are visualized; the inner circumference in pink represents the surface of the circle in 'normal' render mode.

Press ESC to indicate that the process of creating the circle is finished.