EntityQ268132· pop 14· linked from 74 articlesconstructible polygonSign in to saveregular polygon that can be constructed with compass and straightedgeConnectionscompass and straightedge constructionEntityFermat numberEntitynecessity and sufficiencyEntityfield extensionEntityAmerican Mathematical MonthlyEntitymathematicsEntitygeometryEntityEuclidEntityCarl Friedrich GaussEntitytriangleEntityInternational Standard Book NumberEntitycomplex numberEntityprime numberEntitysquareEntityintegerEntityPtolemyEntityancient historyEntitynumber theoryEntityreal numberEntityrational numberEntityCategoriesAncient Greek mathematicsCarl Friedrich GaussConstructible polygonsEuclidean plane geometry