Golden icosahedron
- Author:
- timteachesmath
Golden icosahedron - change the ratio of sides for the isosceles triangles by using the slider in Graphics1.
There's another configuration that makes a regular icosahedron; can you identify it?
This shows a transformation from octahedron to cuboctahedron to icosahedron .
When the ratio of sides in the isosceles triangles is , we get "jessen's orthogonal icosahedron", which I'd love to see modeled in GeoGebra.