A Three-Part Polyhedral Compound Derived From an Enneagonal Prism Posted on 22 March 2023 by RobertLovesPi 1 I made this using Stella 4d, which you can try for free at this website. Share this:EmailFacebookLinkedInPinterestPocketPrintRedditSkypeTelegramTumblrTwitterWhatsAppLike this:Like Loading...