(1) On the east side of the hexagon , opposite the entrance from the sea, there is a large porticoed square with its west side open to the harbour, and containing a central structure - possibly a temple.(2) In the other case, the sides of the hexagon are parallel to the sides of the given triangle.(3) The first day of school, she told me that I must be pretty stupid if I didn't know a hexagon had six sides.(4) They come in two shapes, either a square or a hexagon .(5) You might define a more-general class polygon, which would have triangle as a subclass, along with other subclasses such as quadrilateral, pentagon and hexagon .(6) It is composed of pentagons and hexagons of carbon atoms arranged in a sphere, just like a football (or soccer ball for US readers).(7) The design radiates symmetrically from a central point and is constructed from a pattern of circles, equilateral triangles, squares, hexagons and/or six-pointed stars.(8) For example, 10 carbon atoms can be arranged into two conjoined hexagons , each hexagon sharing two carbon atoms with the other.(9) Resembling the shape of a football, Fullerene contains 60 carbon molecules in hexagons and pentagons.(10) The bee's honeycombs, pristine hexagons , are symmetrical over several axes.(11) This requires that their underlying lattices be based on triangles, parallelograms, or hexagons .(12) The diamond core remains intact, but the surface breaks into carbon hexagons and pentagons, effectively encasing the diamond in a shell similar to a buckyball, which is also called a fullerene.(13) Perfect crystal structures can contain pyramids, cubes, or hexagons , but not pentagons.(14) Secondly, simple, geometric plans such as squares, triangles, and hexagons are common to the most dramatic of these examples.(15) Carbon atoms are linked into hexagons , and the hexagonal pattern makes up the walls of a cylinder only nanometers wide.(16) This time the board is made up of hexagons (instead of squares) and up to four may play.