A grid of spherical triangles
A subdivision of the sphere into 120 spherical triangles with angles 36°, 60°, 90°. Exhibit from Simmetria, giochi di specchi - Symmetry, playing with mirrors.
The image belongs to the sections...:
Spherical geometry (Other geometries)
The symmetry group of the dodecahedron (*532) (Symmetry)
The spheres (From the exhibitions of matematita)