1 hectare is the area of 10,000 square meters. Divide the area of 9 hectares = 9*10,000 = 90,000 square meters by the given side length to get the other (adjacent) side length= 250 meters. Now add the lengths of all four sides of the rectangular field to find its perimeter Perimeter = 360 + 250 + 360 + 250 = ? I leave it to you to find the final value, otherwise your studying Math will be bore and useless to you . . .