
Is this a tessellation using one shape or two? The yellow/blue polygons are the mirror images of the green/red ones, which is why I am uncertain.

Is this a tessellation using one shape or two? The yellow/blue polygons are the mirror images of the green/red ones, which is why I am uncertain.





One of the icosidodecahedra is in the center, and the others are attached to its twenty triangular faces.
Software credit: I used Stella 4d to build this. It is available at http://www.software3d.com/Stella.php.

Created using Stella 4d, available at http://www.software3d.com/Stella.php.



Created with Stella 4d, available at http://www.software3d.com/Stella.php.