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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Box wiki:
[icle is about the receptacle called a box. For other meanings see box (disambiguation).Boxes are highly variable receptacles. When no shape is described, a typical cuboid box may be expected. Nevertheless, a box may have a horizontal cross-section that is square, elongated, round or oval; sloped or domed top surfaces, or non-vertical sides. A box normally may be opened by raising, sliding or removing the lid, which may be hinged and/or fastened by a catch, hasp, or lock. Whatever its shape or purpose or the material of which it is fashioned, it is the direct descendant of the chest, one of the most ancient articles of domestic furniture. Its uses are innumerable, and the name, preceded by a qualifying adjective, has been given to many objects of artistic or antiquarian interest.
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