Noun

- plural form of
*pentagon*

Noun

- plural form of
*pentagon*

English Wiktionary. Available under CC-BY-SA license.

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**MLA Style**

"pentagons." YourDictionary, n.d. Web. 26 March 2019. <https://www.yourdictionary.com/pentagons>.

**APA Style**

pentagons. (n.d.). Retrieved March 26th, 2019, from https://www.yourdictionary.com/pentagons

- In crystallography, the regular or ordinary dodecahedron is an impossible form since the faces cut the axes in irrational ratios; the "pentagonal dodecahedron" of crystallographers has irregular
**pentagons**for faces, while the geometrical solid, on the other hand, has regular ones. - The names of these five solids are: (r) the tetrahedron, enclosed by four equilateral triangles; (2) the cube or hexahedron, enclosed by 6 squares; (3) the octahedron, enclosed by 8 equilateral triangles; (4) the dodecahedron, enclosed by 12
**pentagons**; (5) the icosahedron, enclosed by 20 equilateral triangles. - The
**pentagons**belong to a dodecahedron, and 20 triangles to an icosahedron; the remaining 60 triangles belong to no regular solid.

- pentagons
- pentagram
- pentagrammatic
- pentagramme