# Definitions for antiparallelograman·tipar·al·lel·o·gram

### WiktionaryRate this definition:0.0 / 0 votes

1. antiparallelogramnoun

A quadrilateral in which the pairs of nonadjacent sides are congruent, but in which two opposite sides intersect and are therefore not parallel.

### WikipediaRate this definition:0.0 / 0 votes

1. Antiparallelogram

In geometry, an antiparallelogram is a type of self-crossing quadrilateral. Like a parallelogram, an antiparallelogram has two opposite pairs of equal-length sides, but these pairs of sides are not in general parallel. Instead, sides in the longer pair cross each other as in a scissors mechanism. Antiparallelograms are also called contraparallelograms or crossed parallelograms.Antiparallelograms occur as the vertex figures of certain nonconvex uniform polyhedra. In the theory of four-bar linkages, the linkages with the form of an antiparallelogram are also called butterfly linkages or bow-tie linkages, and are used in the design of non-circular gears. In celestial mechanics, they occur in certain families of solutions to the 4-body problem. Every antiparallelogram has an axis of symmetry, with all four vertices on a circle. It can be formed from an isosceles trapezoid by adding the two diagonals and removing two parallel sides. The signed area of every antiparallelogram is zero.

### WikidataRate this definition:0.0 / 0 votes

1. Antiparallelogram

In geometry, an antiparallelogram is a quadrilateral in which, like a parallelogram, every two opposite sides have the same length, but in which the two longest sides cross each other instead of being parallel. Antiparallelograms are also called contraparallelograms or crossed parallelograms.

### Numerology

1. Chaldean Numerology

The numerical value of antiparallelogram in Chaldean Numerology is: 9

2. Pythagorean Numerology

The numerical value of antiparallelogram in Pythagorean Numerology is: 4

## Translations for antiparallelogram

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• antiparallelogram

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"antiparallelogram." Definitions.net. STANDS4 LLC, 2024. Web. 4 Aug. 2024. <https://www.definitions.net/definition/antiparallelogram>.

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