For that Rhombus pic, it's TRUE -APEX
No, not normally
true!! apex.
false
A regular tessellation or semi-regular tessellation or none.
For that Rhombus pic, it's TRUE -APEX
No, not normally
Yes.
yes
true!! apex.
false
A regular tessellation or semi-regular tessellation or none.
No. See, for example, the top image in the attached link.
No. Because tessellation is about using lost (infinitely many) copies of a polygon to cover a surface, One polygon does not comprise a tessellation.
Yes. Bees are extremely good at tessellating regular hexagons in a honeycomb.
There is no such thing as a seni-regular tessellation. A semi-regular tessllation is a tessellation using two regular polygons: for example, octagons and squares together.
M.C. Escher (dutch)