In geometry, a heptagon or septagon is a seven-sided polygon or 7-gon. The heptagon is sometimes referred to as the septagon, using "sept-" (an elision...

Gea heptagon is a species of orb weaver spiders in the family Araneidae. It is found in Pacific islands and Australia, and has been introduced into the...

A heptagonal number is a figurate number that is constructed by combining heptagons with ascending size. The n-th heptagonal number is given by the formula...

A centered heptagonal number is a centered figurate number that represents a heptagon with a dot in the center and all other dots surrounding the center...

geometry, a heptagonal tiling is a regular tiling of the hyperbolic plane. It is represented by Schläfli symbol of {7,3}, having three regular heptagons around...

In geometry, the heptagonal prism is a prism with heptagonal base. This polyhedron has 9 faces (2 bases and 7 sides), 21 edges, and 14 vertices. The area...

In geometry, the heptagonal antiprism is the fifth in an infinite set of antiprisms formed by two parallel polygons separated by a strip of triangles....

geometry, a heptagonal triangle is an obtuse, scalene triangle whose vertices coincide with the first, second, and fourth vertices of a regular heptagon (from...

Aemeth) is a magical diagram, composed of two circles, a pentagram, two heptagons, and one heptagram, and is labeled with the names of God and its angels...

Figurate numbers representing heptagons are called heptagonal numbers. 7 is also a centered hexagonal number. A heptagon in Euclidean space is unable to...