parallelogram

Home > ... > Science and Technology > Mathematics > Mathematics > ...

Essential reading Compare
side-by-side The Oxford Pocket Dictionary ... World Encyclopedia The Columbia Encyclopedia, ...

parallelogram

parallelogram closed plane figure bounded by four line segments, or sides, with opposite pairs of sides parallel and equal in length. The rhombus, rectangle, and square are special types of parallelograms. Any side of a parallelogram is a base; an altitude is the perpendicular distance from a base to the opposite parallel side. The area of a parallelogram is equal to the product of the lengths of its base and altitude. The diagonals of a parallelogram, connecting opposite vertices, bisect one another; either diagonal divides the parallelogram into two congruent triangles.

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1E1-paralgrm" title="Facts and information about parallelogram">parallelogram</a>

Give this article a thumbs-up on StumbleUpon

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"parallelogram." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 15 Dec. 2009 <http://www.encyclopedia.com>.

"parallelogram." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. (December 15, 2009). http://www.encyclopedia.com/doc/1E1-paralgrm.html

"parallelogram." The Columbia Encyclopedia, Sixth Edition. 2008. Retrieved December 15, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-paralgrm.html

Learn more about citation styles

parallelogram

World Encyclopedia | 2005 | Â© World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

parallelogram Quadrilateral (four-sided plane figure) having each pair of opposite sides parallel and equal. Both the opposite angles of a parallelogram are also equal. Its area is the product of one side and its perpendicular distance from the opposite side. A parallelogram with all four sides equal is a rhombus.

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1O142-parallelogram" title="Facts and information about parallelogram">parallelogram</a>

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"parallelogram." World Encyclopedia. 2005. Encyclopedia.com. 15 Dec. 2009 <http://www.encyclopedia.com>.

"parallelogram." World Encyclopedia. 2005. Encyclopedia.com. (December 15, 2009). http://www.encyclopedia.com/doc/1O142-parallelogram.html

"parallelogram." World Encyclopedia. 2005. Retrieved December 15, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-parallelogram.html

Learn more about citation styles

parallelogram

The Oxford Pocket Dictionary of Current English | 2009 | © The Oxford Pocket Dictionary of Current English 2009, originally published by Oxford University Press 2009. (Hide copyright information) Copyright

par·al·lel·o·gram / ˌparəˈleləˌgram/ • n. a four-sided plane rectilinear figure with opposite sides parallel.

parallelograms

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1O999-parallelogram" title="Facts and information about parallelogram">parallelogram</a>

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"parallelogram." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 15 Dec. 2009 <http://www.encyclopedia.com>.

"parallelogram." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (December 15, 2009). http://www.encyclopedia.com/doc/1O999-parallelogram.html

"parallelogram." The Oxford Pocket Dictionary of Current English. 2009. Retrieved December 15, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-parallelogram.html

Learn more about citation styles

Free newspaper and magazine articles

	What Good Is A Parallelogram?(gaging setup technique)(Brief Article) Magazine article from: Modern Machine Shop; 2/1/2001
	New parallelogram trailer suspension offers several advantages. Magazine article from: Diesel Progress North American Edition; 2/1/1998
	Gypsum crystals in Canada. Magazine article from: Rocks & Minerals; 1/1/2006

Facts and information from other sites

Related articles from newspapers, magazines, and more

	Parallelogram lifts.(Products)(Brief article) Magazine article from: Commercial Carrier Journal; 12/1/2007; 700+ words ; Many fleets have dedicated parallelogram lifts to minimize downtime during...Because many fleets also use parallelogram lifts in wash bays, Rotary Lift...colder climates. Rotary Lift parallelogram lifts now feature a galvanized...
	What Good Is A Parallelogram?(gaging setup technique)(Brief Article) Magazine article from: Modern Machine Shop; 2/1/2001; ; 700+ words ; ...isosceles triangles, parallelograms and dodecahedrons...tools. It's the parallelogram, and it can make...principles involved. A parallelogram has four straight...properties of the parallelogram have been applied...simulate the behavior of parallelograms to transfer motion...
	New parallelogram trailer suspension offers several advantages. Magazine article from: Diesel Progress North American Edition; 2/1/1998; ; 700+ words ; ...suspension system designated the RHP Highway Parallelogram. Designed for heavy-duty truck trailers...spaced tandems, the RHP Highway Parallelogram system is designed to be as much as...trailer suspensions, the new RHP Highway Parallelogram incorporates a lightweight "systems...
	Rotary upgrades parallelogram line.(Shop Equipment) Magazine article from: Fleet Equipment; 10/1/2007; 404 words ; Many fleets have dedicated parallelogram lifts for preventive maintenance inspection...activities. Because many fleets also use parallelogram lifts in wash bays, Rotary Lift parallelogram lifts now feature a galvanized base coat to...
	Parallelogram lifts.(Maintenance/Shop) Magazine article from: Ground Support; 11/1/2005; 339 words ; Mohawk Resources offers a range of parallelogram lifts with capacity ranges from 36,000 to 100,000...lights on undercarriage and a specialized tire dolly, the parallelograms install in just hours. [ILLUSTRATION OMITTED] #179...
	Parallelogram lift. (Equipment & Services). Magazine article from: Public Works; 4/1/2003; 311 words ; This new high-capacity drive-on parallelogram lift features in bay[TM] technology. Operation and maintenance information is available on inbay's built-in LCD screen...
	Parallelogram Lift. Magazine article from: Public Works; 2/1/2000; 460 words ; The Rotary Advantage is a parallelogram design that offers a clear floor in the up position, with no continuous base and no obstructions. It comes in a wide range of...
	Neoplatonism after Derrida; parallelograms.(Brief article)(Book review) Magazine article from: Reference & Research Book News; 11/1/2006; 484 words ; 9789004151550 Neoplatonism after Derrida; parallelograms. Gersh, Stephen. Brill Academic Publishers 2006 223 pages $147.00 Hardcover Ancient Mediterranean and medieval texts and...
	Ohio Inventors Develop Parallelogram Lift Axle Suspension System News Wire article from: US Fed News Service, Including US State News; 10/20/2007; 454 words ; ...have developed an in-line lift axle suspension system. According to the U.S. Patent & Trademark Office: "A parallelogram lift axle suspension system includes an in-line lift bellows located between and vertically aligned with a pair of upper...
	Rotary Lift: Parallelogram Lift Upgrade.(Industry News)(Brief article) Magazine article from: Mass Transit; 9/1/2007; 562 words ; ...the front and rear of the lift, as well as a drive-thru ramp kit * Three installation configurations available for the parallelogram lifts: flush mount, surface mount and surface in recessed mount * Lift capacity ranges from 25,000 lbs. to 130,000...