quadrilateral


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quadrilateral

1. having or formed by four sides
2. a polygon having four sides. A complete quadrilateral consists of four lines and their six points of intersection

Quadrilateral

A plane figure bounded by four straight lines. If two of the lines are parallel, it is a trapezium. If two pairs of lines are parallel, it is a parallelogram. An equilateral parallelogram is a rhombus. A right-angled rhombus is a square.

quadrilateral

[¦kwä·drə′lad·ə·rəl]
(civil engineering)
References in periodicals archive ?
Are there other quadrilaterals with this property (balanced area for grey and white for every point)?
If we consider the rectangle as a quadrilateral Q with distinguished points a+ib, ib, 0,a, we also have M(Q; a+ib, ib, 0, a) = b/a; see [1, 19].
The borders of these four inequalities are designated by four lines, and when they cross each other, they form a quadrilateral in which the design parameters e and ([P.sup.-1]) are chosen from inside of this quadrilateral.
After superficial and deep dissection, we used only the lateral (lateral to iliopsoas) and middle (between iliac vessels and iliopsoas) windows of this approach, thus accessing the iliac wing, the pelvic brim, the quadrilateral surface, and portion of the superior pubic ramus.
Between September 2014 and March 2016, 31 patients were treated for acetabular fractures with the suprapectineal quadrilateral buttress plate.
For display, I added definitions of quadrilateral shapes in the form of "gifts."
Getting back was the longest half an hour of my life.'Part of the Quadrilateral was also taken but, to the left of the Royal Warwicks, the 31st Division was hung up below Serre, whilst to the right the 4th Division had been unable to reach its goal of the Munich Trench.
The ` 2 lakh crore Diamond Quadrilateral project aims to drastically reduce the travelling time between the metro cities with the introduction of the high- speed trains, which will run at speeds of about 300- kmph.
For example, a user entered data that the concept "quadrilateral" is inalienable of the concept "rectangle" (a rectangle is a quadrilateral) and the concept "rectangle" is inalienable of the concept "square" (a square is a rectangle).
The announcement by Quadrilateral Coordination Committee of the peace initiative - comprising senior officials from Afghanistan, Pakistan, China and the United States - that plans were afoot for opening direct talks between the representatives of Afghan government and Taliban factions in the last week of this month reflected the group's confidence about the move.
Summary: A Quadrilateral Coordination Group (QCG) of Afghanistan, China, the United States and Pakistan calls for early direct peace talks with Taliban