File:Rectangle_Geometry_Vector.svg · Wikimedia Commons · See Wikimedia Commons

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Also known as rectangular

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AI overview

A rectangle is a four-sided shape where all four corners are right angles (90 degrees), making it one of the most common and useful geometric forms. Rectangles matter because they appear everywhere in the real world—from buildings and windows to screens and pieces of paper—and their simple, predictable properties make them fundamental to mathematics, design, and engineering.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Polygon.name: Rectangle
Polygon.image: Rectangle_Geometry_Vector.svg
Polygon.caption: Rectangle
Polygon.type: quadrilateral, trapezium, parallelogram, orthotope
Polygon.edges: 4
Polygon.symmetry: Dihedral (D2), [2], (*22), order 4
Polygon.schläfli: { } × { }
Polygon.dual: rhombus
Polygon.properties: convex, isogonal, cyclic Opposite angles and sides are congruent

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Wikidata facts

Instance of: geometric shape
Subclass of: quadrilateral
Has part: area
Image: Prostokat-rectangle.svg

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studied by: graph theory
dual to: rhombus
Commons category: Rectangles
maintained by WikiProject: WikiProject Mathematics
has facet polytope: edge
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4

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