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Circle. Movie
 

A circumference is a geometric figure consisting of all plane points which are equidistant from a given plane point. This point is called the center. A segment joining any point of a circumference to the center and also its length are called the radius of the circumference.

Around you can see a lot of objects witch geometrical representation is a circumference. A clock dial and a rotated propeller may be drawn as a circumference.

A pair of compasses is an instrument intended for a circumference or an arc construction.

 
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