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Parallelogram - Wikipedia, the free encyclopedia
In geometry, a parallelogram is a quadrilateral with two pairs of parallel sides. In Euclidean Geometry, the opposite or facing sides of a parallelogram are of equal length and the ...

parallelogram: Definition from Answers.com
(Click to enlarge) parallelogram (Academy Artworks) parallelogram ( ) n. A four-sided plane figure with opposite sides parallel

Parallelogram definition - Math Open Reference
Parallelogram definition and properties ... Try this Drag the orange dots on each vertex to reshape the parallelogram.

Parallelogram -- from Wolfram MathWorld
A parallelogram is a quadrilateral with opposite sides parallel (and therefore opposite angles equal). A quadrilateral with equal sides is called a rhombus, and a parallelogram ...

parallelogram - definition of parallelogram by the Free Online ...
par·al·lel·o·gram (p r-l l-gr m) n. A four-sided plane figure with opposite sides parallel. [Late Latin parall logrammum, from Greek parall logrammon, from neuter sing. of ...

parallelogram
1. The opposite sides are equal in length. 2. The opposite angles are congruent. 3. The diagonals bisect each other.

Parallelogram - Definition and More from the Free Merriam-Webster ...
Definition of parallelogram from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.

parallelogram Facts, information, pictures | Encyclopedia.com articles ...
parallelogram closed plane figure bounded by four line segments, or sides, with opposite pairs of sides parallel and equal in length. The rhombus,...

Quadrilaterals - Square, Rectangle, Rhombus, Trapezoid, Parallelogram
Quadrilateral just means "four sides" (quad means four, lateral means side). Any four-sided shape is a Quadrilateral. But the sides have to be straight, and it has to ...

Area of a Parallelogram
Area of a parallelogram is presented in this free lesson from Math Goodies.