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Quadrilateral

en.wikipedia.org/wiki/Quadrilateral

In Euclidean plane geometry, a quadrilateral is a polygon with four edges (or sides) and four vertices or corners. Sometimes, the term quadrangle is used, ...

Quadrilaterals - Square, Rectangle, Rhombus, Trapezoid - Math is Fun

www.mathsisfun.com/quadrilaterals.html

Quadrilateral just means "four sides" (quad means four, lateral means side). A Quadrilateral has four-sides, it is 2-dimensional (a flat shape), closed (the lines ...

Polygons - Quadrilaterals - First Glance - Math.com

www.math.com/school/subject3/lessons/S3U2L3GL.html

A quadrilateral is a four-sided polygon with four angles. There are many kinds of quadrilaterals. The five most common types are the parallelogram, the rectangle  ...

The Quadrilateral Family - RegentsPrep

www.regentsprep.org/regents/math/geometry/gp9/lquad.htm

A quadrilateral is any four sided figure. Do not assume any additional properties for a quadrilateral unless you are given additional information.

Math Forum: Ask Dr. Math FAQ: Quadrilateral Formulas

mathforum.org/dr.math/faq/formulas/faq.quad.html

Formulas for finding the area, perimeter, etc. of a quadrilateral.

Quadrilateral (also: tetragon, quadrangle) - math word definition ...

www.mathopenref.com/quadrilateral.html

The quadrilateral is any 4-sided polygon. But it is the parent of a whole family of figures, each with their own distinct names and characteristics. See also ...

Quadrilateral Shapes - Geometry: Math Games - Sheppard Software

www.sheppardsoftware.com/mathgames/geometry/shapeshoot/QuadShapesShoot.htm

Learn about quadrilaterals the fun way in this Quadrilateral Shape Shoot Geometry Math Game.

Quadrilateral | Define Quadrilateral at Dictionary.com

www.dictionary.com/browse/quadrilateral

Quadrilateral definition, having four sides. See more.

Quadrilaterals - Shmoop

www.shmoop.com/basic-geometry/quadrilaterals.html

Red Quadrilateral. Quadrilaterals are four sided shapes. The most common include squares and rectangles, but there are loads of others as well. Like triangles ...

Cool math .com - Polygons - Quadrilaterals - properties, interior angles

www.coolmath.com/reference/polygons-04-quadrilaterals

Properties of quadrilaterals, interior angles of quadrilaterals Polygons: Properties of Quadrilaterals.

Answer
A quadrilateral is any two dimensional, four-sided shape. Its sides must all be straight. Squares, rectangles and parallelograms are all different kinds of quadrilaterals.
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Quadrilateral types | Classifying shapes | Khan Academy

www.khanacademy.org

Sal identifies quadrilaterals as kites, trapezoids, parallelograms, rhombuses, rectangles, and squares.

Quadrilateral -- from Wolfram MathWorld

mathworld.wolfram.com

(If the points do not lie in a plane, the quadrilateral is called a skew quadrilateral.) There are three topological types of quadrilaterals (Wenninger 1983, p.

Classification of Quadrilaterals

www.cut-the-knot.org

Classification of Quadrilaterals. Quadrilateral is a geometric shape that consists of four points (vertices) sequentially joined by straight line segments (sides).