Create Polygon From Polyline

You can create a polygon, a planar surface, from any closed polyline as long as the closed polyline line lies only on one plane. To create a polygon:

1. Select the Geometry workflow tab.
2. Select an existing closed polyline that lies only on one plane. In other words, the generated polygon must be planar.
3. Select the Create Polygon From Polyline option from the toolbar or Draw Tools sub-menu in the Geometry menu.
4. In the Create Polygons dialog you can add or delete polylines to be converted to polygons. Once you are satisfied with the selected polylines, select Create Polygons to generate the polygons and exit the dialog.