A regular tessellation uses one regular polygon.
Regular Tesselation
Regular Tessellation
Tessellations can only be made with angles that combine to 360
Regular pentagons do not tessellate
Regular heptagons do not tessellate
Semi-regular tessellations contain two or more regular polygons.
Semi-regular
semi-regular
semi-regular
Uniform contains the same combination of shapes and angles at each vertex.
This tessellation is uniform and semi-regular
Semi-regular and uniform
This tessellation is not uniform.
Semi-regular but not uniform
Semi-regular but not uniform
Many tessellations are not regular.
Not regular or uniform
Not regular but uniform
Herat mosque, Afghanistan
Mashad, Iran