Question

the perimeter of square is 36 cm find its area

Answer 1

Let one side be x.
Perimeter = 4x
4x=36
x=9.
Area of the square=9^2
= 81 cm^2

Answer 2

Perimeter=36
Side=P/4
=36/4
=9cm
Area=side×side
=9^2
=81cm^2