🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoPortuguêsSvenskaРусский한국어中文日本語EntityQ3130281· pop 13icosihenagonAlso known as 21-gon, henicosagonREDIRECT List of polygonsWikidata factsImageRegular polygon 21 vertex animation.svgvia Wikidata · CC0ArticleREDIRECT List of polygonsAvailable in 12 languagesFrançaisDeutsch日本語PortuguêsItalianoBulgarianCzechHungarianRomanianzh_yue한국어