That depends on the size of the squares.
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A circle with a diameter of 220 meters has an area of 38,000 square meters.
2.2 meters = 220 cm
diameter = 220/pi meters
A foot as a linear measure has no width and no area. So a linear measure of 220 ft has an area of 0 square metres.
Its area is: (30*29)-(26*25) = 220 square meters