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

EntityQ41159· pop 107· linked from 584 articles

菱形

Sign in to save

Also known as equilateral quadrilateral, diamond, lozenge, rhombuses, rhombi, equilateral parallelogram

4つの辺の大きさが全て等しい四角形

AI overview

A rhombus is a four-sided shape where all four sides are equal in length and opposite sides are parallel to each other. It's a useful geometric form that includes the square as a special case and serves as a building block for understanding other shapes like kites and parallelograms.

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

Key facts

Polygon.name: Rhombus
Polygon.image: rhombus.svg
Polygon.caption: A rhombus in two different orientations
Polygon.type: quadrilateral, trapezoid, parallelogram, kite
Polygon.edges: 4
Polygon.symmetry: Dihedral (D2), [2], (*22), order 4
Polygon.schläfli: { } + { }{2α}
Polygon.area: K = \frac{p \cdot q}{2} (half the product of the diagonals)
Polygon.dual: rectangle
Polygon.properties: convex, isotoxal

via Wikipedia infobox

Wikidata facts

Subclass of: quadrilateral
Image: Rhombus.svg

Show 7 more facts

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

Sources (3)

via Wikidata · CC0

Article · 日本語

菱形（ひしがた、りょうけい）、斜方形（しゃほうけい、rhombus）は、4本の辺の長さが全て等しい四角形である。成立条件に、 * 隣り合う2辺の長さが等しい平行四辺形 * 対角線が直交する平行四辺形がある。 4つの内角が全て等しい菱形は正方形であり、その内角は直角に等しい。

Abstract from DBpedia / Wikipedia · CC BY-SA

Gallery (36)

Available in 104 languages

Show 85 more

via Wikidata sitelinks · CC0