Two Polyhedra Derived From an Enneagonal Prism Posted on 23 March 2023 by RobertLovesPi 1 I made these using Stella 4d, which you can try for free at http://www.software3d.com/Stella.php. Share this:EmailFacebookLinkedInPinterestPocketPrintRedditSkypeTelegramTumblrTwitterWhatsAppLike this:Like Loading...