Definition of quadrilateral in English: quadrilateral
noun A four-sided figure.
Example sentences
‘Cut an 8x8 chessboard into two triangles and two quadrilaterals.’ ‘Consider the first nontrivial instance of the equal-area problem, the quadrilateral shown in Figure 1.’ ‘As part of this project the golden quadrilateral was merged with the East-West and North-South corridors.’ ‘This point is labelled A 3b, to emphasize that it is a degenerate quadrilateral.’ ‘Bennin then showed that the quadrilateral formed by a triangle's equalizer is, indeed, always a Pythagorean quadrilateral.’ ‘The complete quadrilateral is nothing but a 4-line in Morley's terminology.’ ‘In front of the classroom, her teacher babbled on about how to prove a quadrilateral was a square.’ ‘The students were also not aware of relationships among quadrilaterals, such as whether all squares are rectangles or vice versa.’ ‘In Treatise on the quadrilateral al-Tusi gave the first extant exposition of the whole system of plane and spherical trigonometry.’ ‘My guess is that these X's and quadrilateral shapes are caused by windows across the street reflecting the light of the low sun.’ ‘These are known as the diagonals of the complete quadrilateral.’ ‘Klein had noticed that given five points, four of them always appeared to define a convex quadrilateral.’ ‘It's this quadrilateral KLMN we are going to be interested in.’ ‘For a quadrilateral ABCD find P minimising AP + BP + CP + DP.’ ‘The square, another bench mark, has the smallest contour ratio of all quadrilaterals.’ ‘When four points are joined, they form a quadrilateral - a four-sided figure.’ ‘The scene here has a total of 800701 quadrilaterals, and looks like this.’ ‘The cross sectional outline is a quadrilateral having a foot surface, a dorsum and two ‘sides.’’ ‘The terrain I generated had a total of over 570000 quadrilaterals.’ ‘In which Barbara gets a little taste of karmic justice, as the eternal triangle becomes a quadrilateral.’ adjective Having four straight sides.
Example sentences
‘He said it had been decided to construct service roads for the highways being built under the golden quadrilateral project.’ ‘A quadrilateral meeting with Cambodia, Laos and Vietnam is also planned on the sidelines of the series of regular meetings.’ ‘The motifs and figures represented include polychrome images of bison, masks, and quadrilateral signs of unknown meaning.’ ‘This type of superstructure could be erected on foundations with either round or quadrilateral contours.’ ‘The bilobate living area has quadrilateral contours and is partly flanked by some horizontal logs and a vertical slab.’ ‘The structure was little more than a hundred story tall segmented cylinder protruding from a quadrilateral base.’ ‘The perimeter wall, up to 2.75 m. thick, encloses an irregular quadrilateral area of about 1.59 ha.’ ‘As in Simone's painting, all the carpets depicted consist of rows of octagonal or quadrilateral compartments.’ ‘It turns out there are many different pairs of quadrilateral shapes that form a nonperiodic tiling pattern.’ ‘Techniques were developed that guaranteed all quadrilateral surfaces were planar.’ ‘It is clear from the quadrilateral case that these spaces have several connected components.’ ‘I am quite aware of the danger in the curved shapes in contrast to the relative safety of quadrilateral shapes.’ Synonyms
rectangular , oblong, right-angled, at right angles, perpendicular
View synonyms Origin Mid 17th century: from late Latin quadrilaterus (from Latin quadri- ‘four’ + latus, later- ‘side’) + -al.
Pronunciation quadrilateral /ˌkwɒdrɪˈlat(ə)r(ə)l/