V2EX triangle

Triangle

定义 Definition

“三角形”:一种由三条线段连接成的多边形,有三个边、三个角。(也常指“由三者构成的三角关系/三角形结构”,如“爱情三角”。)

发音 Pronunciation

/tral/

例句 Examples

A triangle has three sides.
三角形有三条边。

The architect used a triangle to stabilize the frame, because triangular structures are often strong and rigid.
建筑师用三角形来加固框架,因为三角形结构通常坚固且稳定。

词源 Etymology

来自拉丁语 triangulum,由 *tri-*(三)+ angulus(角)构成,字面意思是“有三个角的东西”。

相关词 Related Words

文学作品 Literary Works

  • 《Flatland: A Romance of Many Dimensions》(Edwin A. Abbott):书中以“三角形”等几何图形作为角色与社会阶层的隐喻。
  • 《The Elements》(Euclid):经典几何著作,大量命题与证明围绕三角形展开。
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