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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 . . .
Solved.