which name is a correct way to name the tiling?

  
The hexagonal tiling is the densest way to arrange circles in two dimensions. The Honeycomb conjecture states that the hexagonal tiling is the best way to divide a surface into regions of equal area with the least total perimeter. The optimal three-dimensional structure for making honeycomb.

i would say 10 because a dozen is 12 and you are mincing 2 so 12-2=10. hope this helps and have a good day