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Decagon

释义 Definition

decagon：十边形；一种有 10 条边、10 个角的多边形。（也可指“正十边形”，即十条边和十个角都相等的十边形。）

发音 Pronunciation (IPA)

/dekn/

例句 Examples

A decagon has ten sides.
十边形有十条边。

In geometry class, we calculated the perimeter of a regular decagon using the side length.
在几何课上，我们用边长计算了正十边形的周长。

词源 Etymology

来自希腊语成分：deca- 表示“十”（ten），**-gon** 来自 gōnia，表示“角”（angle）。合起来字面意思是“十个角的图形”。

相关词 Related Words

文学作品 Literary Works

Euclid, Elements（《几何原本》；在多边形与几何作图相关内容中会涉及“十边形/正十边形”概念）
H. S. M. Coxeter, Introduction to Geometry（《几何学导论》；讨论正多边形时会出现 decagon）

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