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2. Hexagonal tiling - Wikipedia

   en.wikipedia.org/wiki/Hexagonal_tiling

   Hexagonal tiling. In geometry, the hexagonal tiling or hexagonal tessellation is a regular tiling of the Euclidean plane, in which exactly three hexagons meet at each vertex. It has Schläfli symbol of {6,3} or t{3,6} (as a truncated triangular tiling). English mathematician John Conway called it a hextille.

3. Stepped gable - Wikipedia

   en.wikipedia.org/wiki/Stepped_gable

   Stepped gable. A stepped gable, crow-stepped gable, or corbie step[1] is a stairstep type of design at the top of the triangular gable -end of a building. [1] [2] The top of the parapet wall projects above the roofline and the top of the brick or stone wall is stacked in a step pattern above the roof as a decoration and as a convenient way to ...

4. List of roof shapes - Wikipedia

   en.wikipedia.org/wiki/List_of_roof_shapes

   Half-hipped (clipped gable, jerkinhead [7]): A combination of a gable and a hip roof (pitched roof without changes to the walls) with the hipped part at the top and the gable section lower down. Dutch gable, gablet : A hybrid of hipped and gable with the gable (wall) at the top and hipped lower down; i.e. the opposite arrangement to the half ...

5. Einstein problem - Wikipedia

   en.wikipedia.org/wiki/Einstein_problem

   Aperiodic tiling with "Tile(1,1)". The tiles are colored according to their rotational orientation modulo 60 degrees. [1] ( Smith, Myers, Kaplan, and Goodman-Strauss) In plane geometry, the einstein problem asks about the existence of a single prototile that by itself forms an aperiodic set of prototiles; that is, a shape that can tessellate space but only in a nonperiodic way.

6. Tessellation - Wikipedia

   en.wikipedia.org/wiki/Tessellation

   Tessellation in two dimensions, also called planar tiling, is a topic in geometry that studies how shapes, known as tiles, can be arranged to fill a plane without any gaps, according to a given set of rules. These rules can be varied. Common ones are that there must be no gaps between tiles, and that no corner of one tile can lie along the edge ...

7. Vinyl composition tile - Wikipedia

   en.wikipedia.org/wiki/Vinyl_composition_tile

   Vinyl floor tiling. Vinyl composition tile (VCT) is a finished flooring material used primarily in commercial and institutional applications. Modern vinyl floor tiles and sheet flooring and versions of those products sold since the early 1980s are composed of colored polyvinyl chloride (PVC) chips formed into solid sheets of varying thicknesses (1 ⁄ 8 in or 3.2 mm is most common) by heat and ...