# Square (geometry)/Related Articles

From Citizendium, the Citizens' Compendium

*See also changes related to Square (geometry), or pages that link to Square (geometry) or to this page or whose text contains "Square (geometry)".*

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- Euclidean geometry [r]: Form of geometry first codified by Euclid in his series of thirteen books,
*The Elements*.^{[e]} - Irrational number [r]: A real number that cannot be expressed as a fraction, m / n, in which m and n are integers.
^{[e]} - Parallelogram [r]: A four-sided plane figure with opposite sides parallel.
^{[e]} - Platonic solid [r]: One of five convex polyhedra bounded by faces which are all the same regular polygon of which the same number meet in each corner.
^{[e]} - Polygon [r]: Two-dimensional geometric closed figure bounded by a continuous set of line segments.
^{[e]} - Polyhedron [r]: A three-dimensional geometric closed figure bounded by a connected set of polygons.
^{[e]} - Rectangle [r]: A four-sided plane figure with four right angles.
^{[e]} - Rhombus [r]: An equilateral parallelogram.
^{[e]} - Square circle [r]: A plane shape, or object viewed from one side, that is both a square and a circle; in philosophy, a common example of an impossible object.
^{[e]} - USA education, preschool [r]:
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