Step-by-step explanation: Perimeter of a square= 4a 72m= 4a a= 72m/4= 18m area= s²= 18m×18m = 324m² Reply

Step-by-step explanation:Perimeter of a square= 4a

72m= 4a

a= 72m/4= 18m

area= s²= 18m×18m

= 324m²