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Polygon vs Trapezium - What's the difference?

polygon | trapezium |

As nouns the difference between polygon and trapezium

is that polygon is a plane figure bounded by straight edges while trapezium is a four-sided polygon with two sides parallel; a trapezoid (modern sense.

polygon

English

Noun

(wikipedia polygon) (en noun)
  • (geometry) A plane figure bounded by straight edges.
  • (geometry) The boundary of such a figure.
  • (geometry, more generally) A figure comprising vertices and (not necessarily straight) edges, alternatingly.
  • (geometry) Such a figure and its interior, taken as a whole.

    • Hypernyms

    * See

    Hyponyms

    * See

    Meronyms

    * See

    Derived terms

    * cumulative frequency polygon * frequency polygon * funicular polygon * polygon of forces

    Related terms

    * polygonal * polygonality * polygonhood * polygonness

    See also

    * polyhedron ----

    trapezium

    English

    Noun

    (en-noun)
  • (geometry, British) A four-sided polygon with two sides parallel; a trapezoid (modern sense)
  • (geometry, US) A four-sided polygon with no parallel sides and no sides equal; a simple convex irregular quadrilateral.
  • (anatomy) The trapezium bone of the wrist.
  • A region on the ventral side of the brain, either just back of the pons Varolii, or, as in man, covered by the posterior extension of its transverse fibers.

    • Usage notes

    * The terms (trapezium) and (trapezoid) have partially swapped meanings in the US and Canada as compared with the rest of the world.

    Synonyms

    * (US) trapezoid * (British) irregular quadrilateral.

    Related terms

    * trapeze * trapeziform * trapezius * trapezoid English nouns with irregular plurals ----