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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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Short "hint"

In geometry, a flat figure with four sides and four angles.

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Usage examples (37)
  • A square is a type of quadrilateral because it has four sides.
  • For instance, the term quadrilateral, or four-sided rectilinear figure, is correctly divided into square, oblong, rhombus, rhomboid and trapezium.
  • Mr. Callahan A quadrilateral is a polygon with four sides.
  • Then this rule would to another: opposite angles in the quadrilateral will be the sum of 180 degrees.
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The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.