¹ *Source: wiktionary.com*

### Definition of Quadrilaterals

**1.** quadrilateral [n] - See also: quadrilateral

### Quadrilaterals Pictures

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### Lexicographical Neighbors of Quadrilaterals

### Literary usage of Quadrilaterals

Below you will find example usage of this term as found in modern and/or classical literature:

**1.** *Euclid's Elements of Geometry* by Henry Martyn Taylor (1893)

"Prove that, if ABCD, EFGH be two **quadrilaterals** which are equiangular to one
another and are such that the ratios AB to El'', and BC to FG are equal, ..."**2.** *A History of Greek Mathematics* by Thomas Little Heath (1921)

"(y) **quadrilaterals**. It is unnecessary to give in detail the methods of measuring
the areas of **quadrilaterals** (chaps. 11-16). Heron deals with the following ..."**3.** *A Treatise on Special Or Elementary Geometry* by Edward Olney (1882)

"Two **quadrilaterals** are equal when the following parts are equal, each to each,
... The triangles into which either diagonal divides the **quadrilaterals**. 2. ..."**4.** *A Treatise on Special Or Elementary Geometry: Including an Elementary, and* by Edward Olney (1879)

"Two **quadrilaterals** are equal when the following parts are equal, each to each,
... The triangles into which either diagonal divides the **quadrilaterals**. 2. ..."**5.** *Catalogue of Scientific Papers, 1800-1900: Subject Indexby Royal Society (Great Britain), Herbert McLeod* by Royal Society (Great Britain), Herbert McLeod (1908)

"Folie, F. Brux. Ac. Bll. 37 (1874) 811-. **quadrilaterals**, Quadrangles, and related
Conic». Circum - **quadrilaterals**, Newton's theorem, demonstration. ..."**6.** *Mathematical Questions and Solutions* by W. J. C. Miller (1871)

"Find the average area of the **quadrilaterals** whose angular points are the centre
of a given circle and three points taken at random on its circumference. ..."**7.** *Junior High School Mathematics: First [-third] Course* by William Ledley Vosburgh, William Frederick Gentleman (1918)

"Classification of **quadrilaterals**. — A quadrilateral is a plane figure inclosed by
... A. **quadrilaterals** are divided into three groups: (a) Parallelogram, ..."**8.** *A Treatise on Special Or Elementary Geometry* by Edward Olney (1879)

"Two **quadrilaterals** are equal when the following parts are equal, each to each,
... The triangles into which either diagonal divides the **quadrilaterals**. 3. ..."