antiparallelogram

antiparallelogram
  n. quadrilateral with two sides parallel and two not parallel.

Dictionary of difficult words. 2015.

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  • Antiparallelogram — An antiparallelogram An antiparallelogram (also called a contraparallelogram[1] or crossed parallelogram[2]) is a quadrilateral in which, like a parallelogram, the p …   Wikipedia

  • antiparallelogram — noun A quadrilateral in which the pairs of nonadjacent sides are congruent, but in which two opposite sides intersect and are therefore not parallel. Syn: contraparallelogram …   Wiktionary

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  • Parallelogram — In geometry, a parallelogram is a quadrilateral with two sets of parallel sides. The opposite sides of a parallelogram are of equal length, and the opposite angles of a parallelogram are congruent. The three dimensional counterpart of a… …   Wikipedia

  • Cyclic quadrilateral — Cyclic quadrilaterals. In Euclidean geometry, a cyclic quadrilateral is a quadrilateral whose vertices all lie on a single circle. This circle is called the circumcircle or circumscribed circle, and the vertices are said to be concyclic. Other… …   Wikipedia

  • List of mathematics articles (A) — NOTOC A A Beautiful Mind A Beautiful Mind (book) A Beautiful Mind (film) A Brief History of Time (film) A Course of Pure Mathematics A curious identity involving binomial coefficients A derivation of the discrete Fourier transform A equivalence A …   Wikipedia

  • contraparallelogram — noun antiparallelogram …   Wiktionary

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