The shape which minimises the perimeter for a fixed area is a circle.
A circle of radius 7.334 ft (approx) will have the required area and a perimeter (circumference) of just 46.084 ft.
The quadrilateral with the smallest perimeter will be a square with sides of 13 feet: a perimeter of 4*13 = 52 feet.
Any regular polygon with more than 4 sides will have a smaller perimeter, for the same area, than a square.
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52 cm
Each side = 52/4 = 13 cm Area = 13*13 = 169 square cm
perimeter_of_square = 4 x side ⇒ side = perimeter ÷ 4 = 52 cm ÷ 4 = 13 cm area_of_square = side2 = (13 cm)2 = 169 cm2
It is: 4*13 = 52 inches
169 cm square.