ADJ.
possible, regular
TESSELLATE + NOUN
plane
PREP.
with
adj
tessellated
verb
To cover with tiles or stones, as a mosaic; to tile.
to cover a two-dimensional shape, such that multiple copies of itself placed edge to edge cover an area leaving no space between the shapes.
Regular hexagons tessellate.
To completely fill (an area) when multiple copies of one or more two-dimensional shapes are placed edge to edge.
It is possible to tessellate the plane with equilateral triangles and regular hexagons.