🌐EnglishEnglishEspañolFrançaisItalianoPortuguêsРусскийالعربية한국어中文日本語EntityQ3890103· pop 11· linked from 200 articlesSchwarz trianglespherical triangle that can be used to tile a sphereAvailable in 11 languagesEspañol中文РусскийItalianoالعربيةEsperantoRomanianSlovenianUkrainian한국어Connectionslist of regular polytopesEntityhyperbolic geometryEntityCategoriesPolyhedraSpherical trigonometry