A “regular star polygon” is a self-intersecting, equilateral equiangular polygon.

A hexagram (Greek) or sexagram (Latin) is a six-pointed geometric star figure with the Schläfli symbol {6/2}, 2{3}, or {{3}}. Since there are no true regular continuous hexagrams, the term is instead used to refer to a compound figure of two equilateral triangles. The intersection is a regular hexagon.

In geometry, a solid figure with 12 faces is called a dodecahedron. The 12-pointed star we have constructed is therefore known as a stellated rhombic dodecahedron.

The patterns of stars seen in the sky are usually called constellations, although more acurately, a group of stars that forms a pattern in the sky is called an asterism.

A hexagon is a closed 2D shape that is made up of straight lines. It is a two-dimensional shape with six sides, six vertices, and six edges. The name is divided into hex, which means six, and gonia, which means corners….Hexagon.

As regards common vernacular names, they are given the suffix -gram to the Greek named number prefix. Just like we call polygons: Pentagons, Hexagons, Nonagons … a star polyon with five points is called a Pentagram, and a six pointed star polygon is caled a Hexagram …

Probably many more of the inorganic variety, like the fracture plane of mica. Of artifacts of nonhuman living things, the only example of a straight line I can think of is the hinge of an ark shell. Arcidae (Ark Clams)

Straight lines do not exist in nature. Some have mentioned the thread of a spider, which is technically a bunch of bumps called atoms that are arranged to approximate a straight line.

Some have mentioned the thread of a spider, which is technically a bunch of bumps called atoms that are arranged to approximate a straight line. Likewise, a photon’s journey is approximately straight, but veers off due to the influence of gravity (you can still argue that the line is straight in space-time, just not space).

When seen up close, snowflakes have incredibly perfect geometric shapes. Circles are found in tree stumps and oceans, while straight lines are seen on beaches and fields. Visit Insider’s homepage for more stories. Nature truly is home to optical illusions, landmarks, and much more.