rectangle
Sign in to saveIn Euclidean plane geometry, a rectangle is a rectilinear convex polygon or a quadrilateral with four right angles. It can also be defined as: an equiangular quadrilateral, since equiangular means that all of its angles are equal (360°/4 = 90°); or a parallelogram containing a right angle. A rectangle with four sides of equal length is a square. The term "oblong" is used to refer to a non-square rectangle. A rectangle with vertices ABCD would be denoted as .
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
via Wikipedia infobox
Article
18 sectionsContents
- Characterizations
- Classification
- Traditional hierarchy
- Alternative hierarchy
- Properties
- Symmetry
- Rectangle-rhombus duality
- Miscellaneous
- Formulae
- Theorems
- Crossed rectangles
- Other rectangles
- Tessellations
- Squared, perfect, and other tiled rectangles
- Unicode
- See also
- References
- External links
{{Infobox Polygon | name = Rectangle | image = Rectangle_Geometry_Vector.svg | caption = Rectangle | type = quadrilateral, trapezium, parallelogram, orthotope | edges = 4 | symmetry = Dihedral (D2), [2], (*22), order 4 | schläfli = { } × { } | wythoff = | coxeter = | area = | dual = rhombus | properties = convex, isogonal, cyclic Opposite angles and sides are congruent }}
In Euclidean plane geometry, a rectangle is a rectilinear convex polygon or a quadrilateral with four right angles. It can also be defined as: an equiangular quadrilateral, since equiangular means that all of its angles are equal (360°/4 = 90°); or a parallelogram containing a right angle. A rectangle with four sides of equal length is a square. The term "oblong" is used to refer to a non-square rectangle. A rectangle with vertices ABCD would be denoted as .