Home›Browse›이십일각형🌐한국어EnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoPortuguêsSvenskaРусский한국어中文日本語EntityQ3130281· pop 13이십일각형Also known as 21-gon, henicosagon변이 21개인 다각형Wikidata factsImageRegular polygon 21 vertex animation.svgShow 1 more factCommons category21-gonsvia Wikidata · CC0Available in 12 languagesFrançaisDeutsch日本語PortuguêsItalianoBulgarianCzechHungarianRomanianzh_yue한국어