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The subdivision of the sphere in 16 spherical triangles with angles of 45°, 90°, 90°. T...
A spherical triangle with angles of 45°, 90°, 90°, 16 of these triangles tessellate th...
The subdivision of the sphere in 12 spherical triangles with angles of 60°, 90°, 90°. T...
A spherical triangle with angles of 60°, 90°, 90°, 12 of these triangles tessellate th...
A spherical triangle with angles of 60°, 90°, 90°, 12 of these triangles tessellate th...
A spherical triangle with angles of 45°, 60° and 90°, 48 of these triangles tessellate ...
A spherical triangle with angles of 45°, 60° and 90°, 48 of these triangles tessellate ...
Two spherical triangles with angles of 45°, 60° and 90°; 24 of these couples of triangl...
A spherical triangle with angles of 36°, 60° and 90°, 120 of these triangles tessellate...
A spherical triangle with angles of 36°, 60° and 90°, 120 of these triangles tessellate...