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How to measure the circumference of a circle - Circumference of a circle: multiply pi by the diameter of the circle (C=pi x D) - Area of a circle: multiply pi by the diameter of the circle (C=pi x D) - Area of a

In fact, the number π was originally discovered for measuring circles: if you measure the circumference of any circle (for example, with a tape measure),

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To calculate the area of a circle you must first obtain or calculate the radius, that is, the distance from the center of the circle to the

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The length of a circle is equal to pi times the diameter. The length of a circle is equal to 2 pi times the radius.

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To figure out this mathematic question, you need to use the order of operations.

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