Shapes other than polygon shapes can be converted to closed polygons using the Convert to Polygon command in the Shape menu. While it is not recommended that shapes be converted to polygons, it can be useful to do this in a number of situation such as to allow shapes to be rotated by arbitrary angles or to generate complex shapes by merging over lapping polygon shapes.

To convert a number of shapes into polygons

§    Select the shapes to be converted.

§    Choose Convert to Polygon from the Shape menu.

Each of the shapes will be converted to a polygon.