The formula is radius squared and timed by pi (3.14)
3 x 3 x 3.14 = 28.26yd2
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Oh, dude, okay, so the area of a circle is πr^2, and the circumference is 2πr. Since the diameter is 7 yards, the radius is half of that, which is 3.5 yards. So, the area would be approximately 38.48 square yards, and the circumference would be around 21.99 yards. But hey, who's counting, right?
Formula C = 2prp = 3.14r = radius2 = times radius by 2Therefore: (2×3) × 3.14 = 18.84 yards.
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The radius is about 8.463 rounded to 3 decimal places
Area of a circle = pi*radius2 Area = 314.159 square feet to 3 decimal places.