bear wiki:
>For other uses, see Bear (disambiguation). Ailuropoda Ursus Tremarctos Arctodus (extinct) A bear is a large mammal of the order Carnivora, family Ursidae. The adjective, ursine, is used to describe things of bearlike nature.
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circle wiki:
>This article is about the shape and mathematical concept of circle; for other meanings, see Circle (disambiguation). In Euclidean geometry, a circle is the set of all points at a fixed distance, called the radius, from a fixed point, called the centre (center). The points can only be those that are part of a conic section; within the set of a plane bisecting a cone. Circles are simple closed curves, dividing the plane into an interior and exterior. Sometimes the word circle is used to mean the interior, with the circle itself called the circumference. Usually however, the circumference means the length of the circle, and the interior of the circle is called a disk or disc.
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