Properties Of Square:-
1. All Sides are Equal
2. All four Angles are equal and 90° each
3. Diagonals are equal & bisect each other at 90°
Perimeter (P) = 4a
Area:- a² or (d²)/2 or (P²)/16
Here a – side of square
d – diagonal of square
P – perimeter
Diagonal(d) = a√2 or P/2√2