V2EX isosceles triangle

Isosceles Triangle

释义 Definition

等腰三角形:有两条边长度相等的三角形(通常相等的两边称为腰,相对的角相等)。注:在某些定义中,等边三角形也可视为等腰三角形的一种特殊情况。

发音 Pronunciation (IPA)

/assliz tral/

例句 Examples

An isosceles triangle has two equal sides.
等腰三角形有两条边相等。

In geometry class, we proved that the base angles of an isosceles triangle are congruent.
在几何课上,我们证明了等腰三角形的底角相等。

词源 Etymology

isosceles 源自希腊语 isos(“相等的”)+ skelos(“腿、支撑”),字面意思类似“(两条)腿一样长的”,用来形容两边相等的三角形;triangle 来自拉丁语 *tri-*(“三”)+ angulus(“角”),意为“三个角的图形”。

相关词 Related Words

文学作品 Literary Works

  • Euclid’s Elements(《几何原本》)讨论三角形性质与证明框架时常涉及等腰三角形相关命题与推理。
  • Flatland: A Romance of Many Dimensions by Edwin A. Abbott(《平面国》)以几何图形与维度为主题的经典作品,语境中会出现包括三角形在内的几何术语与描述。
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