Truncated triakis icosahedron

The truncated triakis icosahedron, or more precisely an order-10 truncated triakis icosahedron, is a convex polyhedron with 72 faces: 20 sets of 3 pentagons arranged in an icosahedral arrangement, with 12 decagons in the gaps.

Triakis icosahedron

It is constructed from a triakis icosahedron by truncating the order-10 vertices. This creates 12 regular decagon faces, and leaves 60 mirror-symmetric pentagons.

Decakis truncated dodecahedron

The dual of the truncated triakis icosahedron is called a decakis truncated dodecahedron. It can be seen as a truncated dodecahedron with decagonal pyramids augmented to the faces.

See also


Uses material from the Wikipedia article Truncated triakis icosahedron, released under the CC BY-SA 4.0 license.