Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.



Concave deltahedra with less than 12 faces
Posted:
Jun 5, 2006 7:09 PM


I'm trying to keep a lesson on deltahedra within the bounds of the realistic. I know there is a finite number of convex deltahedra and an infinite number of concave deltahedra, but I'm having trouble trying to find out how many deltahedra there are with less than 12 faces (apart from trial and error). Does anyone know, or know of a reference with pictures?
Also, as a quick guess, I'm thinking that within this limited group of deltahedra there would only be ones with an even number of faces (for the same reason that there are only evennumber faces for the convex deltahedra). Thoughts?



