Ninu jiometri, a alopomeji tabi onilopomeji je elegbemerin deede . O tumosi pe o ni egbe merin didogba ati igun merin didogba (90-iyi igun, tabi igun gboro)[1]. A square with vertices ABCD would be denoted ABCD

Square (geometry).svg
A square is a regular quadrilateral.
Edges and vertices4
Schläfli symbol{4}
Coxeter–Dynkin diagramsÀdàkọ:CDD
Symmetry groupDihedral (D4)
Areat2 (with t = edge length)
Internal angle (degrees)90°
Propertiesconvex, cyclic, equilateral, isogonal, isotoxal