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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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    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°
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    Quadrilateral A quadrilateral is a polygon that has four sides The following are a few examples Parts of quadrilateral Quadrilateral ABCD, shown below, has the following properties: Four sides: AB, BC, CD, and AD Opposite sides do not share a common vertex
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    2 sets of adjacent, congruent sides In a kite, the congruent sides are adjacent (or consecutive) and not opposite one another (Kites referred to on this site are convex kites ) Properties: A trapezoid is a quadrilateral with at least one pair of parallel sides





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