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Firstly we need to convert 40 acres into square yards. There are 4,840 square yards in an acre. Now we multiply that by 40, and we get 4,840 x 40 = 193,000 square yards. If that were a big square then each side would be √ 193,600 = 440 yards long. So, if that is one side, the perimeter is 4 times that = 4 x 440 = 1,760 yards - which equals 1 mile.

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16y ago

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