# Circle

#### This page is about the meaning, origin and characteristic of the symbol, emblem, seal, sign, logo or flag: Circle.

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A circle is a simple shape of Euclidean geometry that is the set of all points in a plane that are at a given distance from a given point, the centre. The distance between any of the points and the centre is called the radius. It can also be defined as the locus of a point equidistant from a fixed point.

A circle is a simple closed curve which divides the plane into two regions: an interior and an exterior. In everyday use, the term "circle" may be used interchangeably to refer to either the boundary of the figure, or to the whole figure including its interior; in strict technical usage, the circle is the former and the latter is called a disk.

A circle can be defined as the curve traced out by a point that moves so that its distance from a given point is constant.

A circle may also be defined as a special ellipse in which the two foci are coincident and the eccentricity is 0.

The word "circle" derives from the Greek κίρκος (kirkos), itself a metathesis of the Homeric Greek κρίκος (krikos), meaning "hoop" or "ring". The origins of the words "circus" and "circuit" are closely related.

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Graphical characteristics:
Symmetric, Closed shape, Monochrome, Contains curved lines, Has no crossing lines.

Category: Geometry Symbols.

## More symbols in Geometry Symbols:

Geometry (Ancient Greek: γεωμετρία; geo- "earth", -metron "measurement") is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space.… read more »

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"Circle." Symbols.com. STANDS4 LLC, 2020. Web. 25 Sep. 2020. <https://www.symbols.com/symbol/circle>.

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