08-17-2020, 02:11 PM
I do not know what the authorized method is 
There are various ways of making a polygon with Ofnuts shape plugin. However:
You can make a regular polygon from a radius , start point and paths (any length / direction) for the number of sides. Start with 15 deg or vertical and rotate later.
Shapes -> On Strokes -> Polygon -> Polygon from circumradius https://i.imgur.com/G0c3XKt.jpg
Then shrink the sides down
Shapes -> On segments -> Modify segments. Keep the start and finish symmetrical https://i.imgur.com/kVt8cqQ.jpg
There are various ways of making a polygon with Ofnuts shape plugin. However:You can make a regular polygon from a radius , start point and paths (any length / direction) for the number of sides. Start with 15 deg or vertical and rotate later.
Shapes -> On Strokes -> Polygon -> Polygon from circumradius https://i.imgur.com/G0c3XKt.jpg
Then shrink the sides down
Shapes -> On segments -> Modify segments. Keep the start and finish symmetrical https://i.imgur.com/kVt8cqQ.jpg