🌐EnglishEnglishDeutschEspañolFrançaisNederlandsPolskiTürkçeالعربية한국어日本語EntityQ1317367· pop 15· linked from 9 articlesJapanese theorem for cyclic polygonstheorem that no matter how one triangulates a cyclic polygon, the sum of inradii of triangles is constantAvailable in 14 languagesEspañolFrançaisDeutsch日本語العربيةCatalanGreekHebrewNederlandsConnectionsgeometryEntitytriangleEntityCategoriesEuclidean plane geometryJapanese mathematicsTheorems about triangles and circles