🌐EnglishEnglishDeutschEspañolFrançaisItalianoPortuguêsTürkçeРусскийالعربيةفارسی한국어中文日本語EntityQ1321926· pop 20· linked from 109 articlesconstructible numberreal number that can be geometrically constructed with compass and straightedge from a unit segment in a finite number of stepsAvailable in 19 languagesEspañolFrançaisDeutsch中文العربيةCatalanDanishFinnishGreekHebrewConnectionsintegerEntitysquare rootEntityCategoriesAlgebraic numbersEuclidean plane geometry