<strong>Step 3:</strong> The first line is going to be centered at the origin. After selecting the line command, check the “midpoint line” box in the left panel. Where you select will become the location of the center of the line. Select the origin and draw a horizontal line. | <strong>Step 3:</strong> The first line is going to be centered at the origin. After selecting the line command, check the “midpoint line” box in the left panel. Where you select will become the location of the center of the line. Select the origin and draw a horizontal line. |