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hendecagram
Sign in to saveIn geometry, a hendecagram (also endecagram or endekagram) is a star polygon that has eleven vertices.
Key facts
- Polygon.name
- Hendecagram
- Polygon.image
- HendecagramTypes.png
- Polygon.caption
- The four regular hendecagrams
- Polygon.edges
- 11
- Polygon.schläfli
- {11/2}, {11/3}{11/4}, {11/5}
- Polygon.coxeter
- , ,
- Polygon.angle
- ≈114.545° {11/2}≈81.8182° {11/3}≈49.0909° {11/4}≈16.3636° {11/5}
- Polygon.symmetry
- Dih11, order 22
via Wikipedia infobox
Wikidata facts
- Subclass of
- hendecagon
- Followed by
- dodecagram
- Follows
- decagram
Show 2 more facts
- P1312
- edge
via Wikidata · CC0
Article
6 sectionsContents
- Regular hendecagrams
- Construction
- Applications
- See also
- References
- External links
{{Infobox polygon | name = Hendecagram | image = HendecagramTypes.png | caption = The four regular hendecagrams | edges = 11 | schläfli = {11/2}, {11/3}{11/4}, {11/5} | coxeter =, , | symmetry = Dih11, order 22 | area = | angle = ≈114.545° {11/2}≈81.8182° {11/3}≈49.0909° {11/4}≈16.3636° {11/5} | properties =}} In geometry, a hendecagram (also endecagram or endekagram) is a star polygon that has eleven vertices.
The name hendecagram combines a Greek numeral prefix, hendeca-, with the Greek suffix -gram. The hendeca- prefix derives from Greek ἕνδεκα (ἕν + δέκα, one + ten) meaning "eleven". The -gram suffix derives from γραμμῆς (grammēs) meaning a line.