EntityQ17004522· pop 11· linked from 45 articlesCarlyle circleSign in to savecircle in a coordinate plane associated with a quadratic equationConnectionscompass and straightedge constructionEntitymathematicsEntityQ5879EntityareaEntityInternational Standard Book NumberEntitycircleEntityRalph Waldo EmersonEntityJohn Stuart MillEntityThomas CarlyleEntityJohn RuskinEntitydigital object identifierEntitycoordinate systemEntityphoenixEntityquadratic equationEntitypentagonEntityline segmentEntityCartesian coordinate systemEntityYggdrasilEntityJSTOROrganizationregular polygonEntityCategoriesConstructible polygonsElementary algebraEquationsEuclidean geometryEuclidean plane geometryPolygonsThomas Carlyle