This PREP workshop was made possible by the NSF grant DUE: 0341481

Circles

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File:Circ1.png
An example of a circle with center O, radius r, and a point P that lies on the circle
A circle is a set of points that all lie at the same distance from a fixed point, called center. Circles come in all different sizes. We sometimes measure the distance from the center to the point on the circle and this distance is called the radius.
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