Question

what should the side of each square be ?​

Answer 1

All four angles of a square are equal (each being 360°/4 = 90°, a right angle). All four sides of a square are equal. The diagonals of a square are equal.

Answer 2

Answer:

All four angles of a square are equal (each being 360°/4 = 90°, a right angle). All four sides of a square are equal. The diagonals of a square are equal.

Internal angle (degrees): 90°

Schläfli symbol: 4

Symmetry group: Dihedral (D4), order 2×4

Dual polygon: Self