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The area of a circle can be worked out by the formula πr2 , where r is the radius of the circle and π (pi) is the ratio of the circumference to the diameter (= 3.142 to three decimal places)

So 3.142 × 122 = 3.142 × 144 = 452.4 square miles

There are 640 acres in one square mile, so 640 × 452.4 = 289,530 acres

In a circle of six miles radius, the area covered is 289,530 acres.

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โˆ™ 2010-04-20 21:59:17
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Q: If there was a perfect circle and it was approximately 12 miles radius from the center how many acres surface area would that circle be?
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