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quadrilateral    
a. 四边形,四边地,四角地

四边形,四边地,四角地

quadrilateral
四边形

quadrilateral
四边形

quadrilateral
adj 1: having four sides [synonym: {quadrilateral}, {four-sided}]
n 1: a four-sided polygon [synonym: {quadrilateral}, {quadrangle},
{tetragon}]

Quadrilateral \Quad`ri*lat"er*al\, a. [L. quadrilaterus: cf. F.
quadrilat[`e]re, quadrilat['e]ral. See {Quadri-} and
{Lateral}.]
Having four sides, and consequently four angles;
quadrangular.
[1913 Webster]


Quadrilateral \Quad`ri*lat"er*al\, n.
1. (Geom.) A plane figure having four sides, and consequently
four angles; a quadrangular figure; any figure formed by
four lines.
[1913 Webster]

2. An area defended by four fortresses supporting each other;
as, the Venetian quadrilateral, comprising Mantua,
Peschiera, Verona, and Legnano.
[1913 Webster]

{Complete quadrilateral} (Geom.), the figure made up of the
six straight lines that can be drawn through four points,
A, B, C, I, the lines being supposed to be produced
indefinitely.
[1913 Webster]

51 Moby Thesaurus words for "quadrilateral":
bifacial, bilateral, biquadratic, cube-shaped, cubed, cubic,
cubiform, cuboid, diced, dihedral, flanked, four, four-legged,
four-rayed, foursquare, handed, lateral, many-sided, multilateral,
oblong, one-sided, orthogonal, polyhedral, quadrangular, quadrate,
quadric, quadriform, quadrinomial, quadrivalent, quadruped,
quartic, quartile, quaternary, rectangular, rhombic, rhomboid,
sided, square, tetractinal, tetrad, tetragonal, tetrahedral,
tetravalent, three-sided, trapezohedral, trapezoid, trihedral,
trilateral, triquetrous, two-sided, unilateral


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  • Quadrilaterals - Square, Rectangle, Rhombus, Trapezoid, Parallelogram
    A Quadrilateral has four-sides, it is 2-dimensional (a flat shape), closed (the lines join up), and has straight sides A quadrilateral has: Try drawing a quadrilateral, and measure the angles They should add to 360° There are special types of quadrilateral: Some types are also included in the definition of other types!
  • Quadrilateral - Wikipedia
    In geometry a quadrilateral is a four-sided polygon, having four edges (sides) and four corners (vertices) The word is derived from the Latin words quadri, a variant of four, and latus, meaning "side"
  • Quadrilateral – Definition, Properties, Types, Formulas, Examples
    A quadrilateral is a flat geometric shape having four straight sides and four vertices It is a type of polygon The word ‘quadrilateral’ is derived from the Latin words ‘quadri’, meaning ‘four’, and ‘latus’, meaning ‘side’ In a quadrilateral ABCD, find ∠BCD, if ∠ABC = 80°, ∠CDA = 110°, and ∠DAB = 100°
  • Quadrilateral - Math Steps, Definition, Examples Questions
    Free quadrilateral step-by-step topic guide, including the definition, properties, step-by-step examples, free practice questions, and more!
  • Quadrilateral Shapes and Facts - Science Notes and Projects
    In geometry, a quadrilateral is a two-dimensional closed shape or polygon that has four straight sides, four corners or vertices, and four interior angles The sum of the interior angles is 360 degrees
  • Quadrilateral - Math. net
    A quadrilateral is a polygon that has four sides The following are a few examples Quadrilateral ABCD, shown below, has the following properties: Four sides: AB, BC, CD, and AD Opposite sides do not share a common vertex Four interior angles at each of the vertices: A, B, C, and D Opposite angles do not share a common side
  • Quadrilaterals (video lessons, examples and solutions)
    What Is A Quadrilateral? Quadrilaterals are two-dimensional four-sided polygons on a plane Quadrilaterals have the following properties: four sides, two diagonals, four internal angles (or vertices), the interior angles add up to 360°
  • Khan Academy
    Khan Academy Khan Academy
  • Quadrilaterals – Explanation Examples - The Story of Mathematics
    In simple words, a quadrilateral is a shape with four sides Quadrilaterals are everywhere! From the books, chart papers, computer keys, television, and mobile screens The list of real-world examples of quadrilaterals is endless There are six quadrilaterals in geometry
  • What is Quadrilateral? Definition, Properties, Types, Examples
    A quadrilateral is a polygon having four sides, four angles, and four vertices Let's learn about different types of quadrilaterals, properties, examples and more!





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