Wörterbuch (en): Heptagon
de: Heptagon (nt) / Seibeneck (nt)
fr: Heptagone (m)
it: Ettagono (m)
es: Heptágono (m)
The heptagon belongs to the group of polygons. It is defined by seven points. Unless otherwise stated, we are talking about a flat, regular heptagon whose seven sides are of equal length and whose seven corner points lie within a common perimeter.