decagon

[ dek-uh-gon, -guhn ]

noun

, Geometry.

1. a polygon having ten angles and ten sides.

decagon

/ dɪˈkæɡənəl; ˈdɛkəˌɡɒn /

noun

1. a polygon having ten sides

decagon

/ dĕk′ə-gŏn′ /

1. A polygon having ten sides.

Derived Forms

• deˈcagonally, adverb
• decagonal, adjective

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

Tape 10 short struts to the triangle tops, making another decagon.

From New York Times

Most of the list came from the state eighth grade curriculum: barometer, decagon, perpendicular .

From Literature

The purpose of this problem is to prepare for the construction of the regular decagon and pentagon.

From Project Gutenberg

Just looking at Penrose's pattern, one sees plenty of pentagons and decagons.

From Science Magazine

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

From Project Gutenberg