Thank you Julia that page is very informative. I had also received a private answer from someone on this list, in which the shape is called an octagram or a star octagon.
> Date: Wed, 24 May 2023 08:13:37 +020 > From: Julia Palffy <[email protected]> > To: The Origami Mailing List <[email protected]> > Subject: Re: [Origami] Octagon + triangles shape name > Message-ID: <[email protected]> > Content-Type: text/plain; charset="utf-8" > > Geometry and tessellations are much older than Pompeii. > This is one of eight combinations called Archimedean tessellations or > semi-regular tessellations. You can look them up on the Wolfram Mathworld > website. > > Regards, > > Julia > -- Jorge Jaramillo
