## Mathematical Model – Small Stellated Dodecahedron

Accession Number: 2016.mat.21

A colourful mathematical model of cardboard in the form of a small dodecahedron. Each face in the same plane is given a distinct colour.

The model features a small brass ring which permits it to be hung from a string.

Primary Materials: cardboard

This model is marked with the number “12” in black pen.

Dimensions (cm): Longest dimension = 20 cm

Function: Pedagogical mathematical model.

Very Good: The model has some small points of damage and punctures.

Manufacturer: Unknown

Date of Manufacture: c. 1960

These models existed at the Dept. of Mathematics during the tenure of Dr. H.S.M. Coxeter, who provided the comments below

“This is the small stellated dodecahedron. You get it by taking a dodecahedron and extending its faces until the planes meet again. Cut the pyramid off, and you have one face of the dodecahedron, or, see it as a dodecahedron with pyramids stuck on to the faces.” H.S.M.Coxeter, March 10, 2000