decagon

[ dek-uh-gon, -guhn ]

noun

, Geometry.

1. a polygon having ten angles and ten sides.

decagon

/ ˈdɛkəˌɡɒn; dɪˈkæɡənəl /

noun

1. a polygon having ten sides

decagon

/ dĕk′ə-gŏn′ /

1. A polygon having ten sides.

Derived Forms

• decagonal, adjective
• deˈcagonally, adverb

Other Words From

• de·cag·o·nal [d, uh, -, kag, -, uh, -nl], adjective

Word History and Origins

Origin of decagon¹

From the Medieval Latin word decagōnum, dating back to 1565–75. See deca-, -gon

Example Sentences

To construct a regular pentagon, we find it convenient first to construct a regular decagon.

From Project Gutenberg

Below the arches are the chapels which surround the decagon in symmetrical fashion.

From Project Gutenberg

The plan of the church was a decagon, within which six composite columns in the centre supported six semi-circular vaults.

From Project Gutenberg

In the fourth are six triangles, in the fifth, five polygons from a pentagon to a decagon.

From Project Gutenberg

Decagon, dek′a-gon, n. a plane figure of ten angles and sides.

From Project Gutenberg