🌐EnglishEnglishEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийالعربيةفارسیहिन्दी한국어中文日本語EntityQ1149348· pop 31· linked from 22 articlesBrahmagupta's formulatheoremAvailable in 31 languagesEspañolFrançais中文日本語РусскийItalianoالعربيةहिन्दीArmenianConnectionstriangleEntityareaEntityCategoriesAreaBrahmaguptaTheorems about quadrilaterals and circles