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Standard form of the equation of a circle

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Standard form of the equation of a circle

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Pi * radius squared

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Pi * Diameter

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An angle formed by two chords in a circle which have a common endpoint.

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The angle that forms when two radii meet at the center of a circle. A central angle's vertex will always be the center point of a circle. The central angle forms at O.

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A half of a circle.

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An arc a circle having measure greater than or equal to radians.

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An arc of a circle having measure less than or equal to radians.

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The portion of a disk enclosed by two radii and an arc.

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A part of the circumference.

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A line passing through two points on a circle.

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A line that goes from one point to another on the circle's circumference.

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A line that just touches a curve at one point, without cutting across the circle.

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A straight line that passes from side to side through the center of the circle.

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The Radius is the distance from the center of the circle to the outside.

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A 2-dimensional shape made by drawing a curve that is always the same distance from a center.