File:Rectangle_Geometry_Vector.svg · Wikimedia Commons · See Wikimedia Commons
Rechteck
Sign in to saveAlso known as rectangular
zweidimensionales geometrisches Objekt mit vier rechten Winkeln und gleichlangen gegenüberliegenden Seiten
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
via Wikipedia infobox
Wikidata facts
- Instance of
- geometric shape
- Subclass of
- quadrilateral
- Has part
- area
- Image
- Prostokat-rectangle.svg
Show 6 more facts
- 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
via Wikidata · CC0
Article · Deutsch
In der Geometrie ist ein Rechteck (ein Orthogon) ein ebenes Viereck, dessen Innenwinkel alle rechte Winkel sind. Es ist ein Spezialfall des Parallelogramms und damit auch des Trapezes. Ein Sonderfall des Rechtecks ist das Quadrat, bei dem alle Seiten gleich lang sind. In der Topologie ist ein Rechteck eine Mannigfaltigkeit mit Rand, genauer eine Mannigfaltigkeit mit Ecken.
Abstract from DBpedia / Wikipedia · CC BY-SA
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