Question

find the area of a square whose perimeter is 84 CM

Answer 1

The perimeter of square = 4×side

84=4 ×side
side=84/4
side=21 cm

Area of square= side×side

=21×21
=441 m^2

^-^

Answer 2

perimeter of square=4xside
84cm=4xside
side=84/4
side=21cm
side=21cm
area of square=sidexside
=21x21
=441 cm^2

Hope it helps you and plz mark it as the brainlest one