记忆方法
将“equilateral”拆解为“equi-”（均等、相等）和“-ateral”（与边有关的），联想为“所有边都相等的”，这样可以记忆这个单词表示的是“等边三角形”的特性。
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中文词源
equilateral 等边的
equ-, 平等，相等。-later, 边，见lateral.
英语词源
- equilateral (adj.)
- "having all sides equal," 1560s, from Late Latin aequilateralis, from aequi- (see equal (adj.)) + lateralis (see lateral). Related: Equilaterally.
权威例句
- 1. Use your protractor to construct an equilateral triangle.
- 用量角器作一个等边三角形.
- 2. The angles are equal, for ABC is equilateral.
- 三角相等, 因为三角形ABC是等边三角形.
- 3. Its outline roughly forms an equilateral triangle.
- 它的轮廓大致形成一个等边三角形。
- 4. An equilateral triangle cannot be dissected into finitely many incongruent equilateral triangles.
- 等边三角形不能分成有限多个不全等的等边三角形.
- 5. Each face is an equilateral triangle and three faces meet at each vertex.
- 每一个面是正三角形并且于每一个顶点处有三个面相交.