◯ Associate to Circle
◯ Associate to Circle
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[1]
The area of any circle is equal to a right-angled triangle in which one of the sides about the right angle is equal to the radius, and the other to the circumference, of the circle.[2]
The area of a circle is to the square on its diameter as 11 to 14.[3]
The ratio of the circumference of any circle to its diameter is greater than 3\tfrac{10}{71} but less than 3\tfrac{10}{70}.
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manhattan=0
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