🌐EnglishEnglishEspañolFrançaisNederlandsSvenskaTiếng ViệtРусскийالعربية한국어中文日本語EntityQ897296· pop 12· linked from 15 articlesorthocentric systemAvailable in 12 languagesEspañol中文РусскийGreekHungarianNederlandsSvenskaTamilTiếng ViệtConnectionscircumscribed circle for triangleEntityorthocenterEntityCategoriesQuadrilateralsTriangle geometry