# Dictionary Definition

rectangular adj

1 having four right angles; "a rectangular figure
twice as long as it is wide"

2 having a set of mutually perpendicular axes;
meeting at right angles; "wind and sea may displace the ship's
center of gravity along three orthogonal axes"; "a rectangular
Cartesian coordinate system" [syn: orthogonal]

# User Contributed Dictionary

## English

### Adjective

rectangular#### Translations

- Dutch: rechthoekig, rechthoekige
- Finnish: suorakulmainen, suorakaiteen muotoinen
- French: rectangulaire
- German: rechteckig
- Telugu: చతురస్త్ర (chaturastra), చదరం (chadaram)

# Extensive Definition

In geometry, a rectangle is
defined as a quadrilateral where all
four of its angles are right angles.
A rectangle with vertices ABCD would be denoted as
rectanglenotation ABCD.

From this definition, it follows that a rectangle
has two pairs of parallel sides; that is, a rectangle is a parallelogram. A square
is a special kind of rectangle where all four sides have equal
length; that is, a square is both a rectangle and a rhombus. A rectangle that is not
a square is colloquially known as an oblong.

Normally, of the two opposite pairs of sides in a
rectangle, the length of the longer side is called the length of
the rectangle, and the length of the shorter side is called the
width.

The area
of a rectangle is the product of its length and
its width; in symbols, A=lw. For example, the area of a rectangle
with a length of 5 and a width of 4 would be 20, because 5 \times 4
= 20.

In a rectangle the diagonals cross each other at
their respective midpoints, under the same argument as for parallelograms. Unlike
general parallelograms the two diagonals of a rectangle have the
same length, the length of the diagonal can be found using the
Pythagorean
theorem.

In calculus, the Riemann
integral can be thought of as a limit
of sums of the areas of
arbitrarily thin rectangles.

## See also

## External links

- Animated course (Construction, Circumference, Area)
- Definition and properties of a rectangle With interactive animation
- Area of a rectangle with interactive animation

rectangular in Asturian: Rectángulu

rectangular in Aymara: Wiskhalla

rectangular in Bengali: আয়তক্ষেত্র

rectangular in Bosnian: Pravougaonik

rectangular in Breton: Skouergorneg

rectangular in Bulgarian: Правоъгълник

rectangular in Catalan: Rectangle

rectangular in Czech: Obdélník

rectangular in Danish: Rektangel

rectangular in German: Rechteck

rectangular in Estonian: Ristkülik

rectangular in Modern Greek (1453-): Ορθογώνιο
παραλληλόγραμμο

rectangular in Spanish: Rectángulo

rectangular in Esperanto: Ortangulo

rectangular in Basque: Laukizuzen

rectangular in Persian: مستطیل

rectangular in French: Rectangle

rectangular in Korean: 직사각형

rectangular in Hindi: आयत

rectangular in Indonesian: Persegi panjang

rectangular in Icelandic: Rétthyrningur

rectangular in Italian: Rettangolo

rectangular in Hebrew: מלבן

rectangular in Georgian: მართკუთხედი

rectangular in Swahili (macrolanguage):
Mstatili

rectangular in Haitian: Rektang

rectangular in Lao: ຮູບສີ່ແຈສາກ

rectangular in Latvian: Taisnstūris

rectangular in Lithuanian: Stačiakampis

rectangular in Limburgan: Rechhook

rectangular in Hungarian: Téglalap

rectangular in Dutch: Rechthoek

rectangular in Japanese: 長方形

rectangular in Norwegian: Rektangel

rectangular in Norwegian Nynorsk:
Rektangel

rectangular in Central Khmer: ចតុកោណកែង

rectangular in Polish: Prostokąt

rectangular in Portuguese: Rectângulo

rectangular in Romanian: Dreptunghi

rectangular in Quechua: Wask'a

rectangular in Russian: Прямоугольник

rectangular in Sicilian: Rittànculu

rectangular in Simple English: Rectangle

rectangular in Slovak: Obdĺžnik

rectangular in Slovenian: Pravokotnik

rectangular in Serbian: Правоугаоник

rectangular in Finnish: Suorakulmio

rectangular in Swedish: Rektangel

rectangular in Tagalog: Parihaba

rectangular in Tamil: செவ்வகம்

rectangular in Thai: รูปสี่เหลี่ยมผืนผ้า

rectangular in Vietnamese: Hình chữ nhật

rectangular in Turkish: Dikdörtgen

rectangular in Ukrainian: Прямокутник

rectangular in Vlaams: Rechtoek

rectangular in Chinese: 矩形

# Synonyms, Antonyms and Related Words

cube-shaped, cubed, cubic, cubiform, cuboid, diced, elliptical, elongated, foursquare, normal, oblong, oblongated, oblongitudinal, orthodiagonal, orthogonal, orthometric, perpendicular, quadrangular, quadrate, quadriform, quadrilateral, rhombic, rhomboid, right-angle,
right-angled, right-angular, square, tetragonal, tetrahedral, trapezohedral, trapezoid