🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийالعربيةहिन्दीไทย中文日本語EntityQ377047· pop 25· linked from 7 articlesbutterfly theoremtheoremWikidata factsImageButterfly1.svgSources (1)wikidata.orgvia Wikidata · CC0Available in 24 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةहिन्दीConnectionscircleEntityWilliam HerschelEntityCategoriesEuclidean plane geometryTheorems about circles