尺规

尺規

chǐguī

noun

Meanings

HSK 7-9

古希腊人用尺规作图研究几何。

Gǔxīlà rén yòng chǐguī zuòtú yánjiū jǐhé.

The ancient Greeks studied geometry using ruler-and-compass constructions.

HSK 7-9

三等分任意角不能仅用尺规完成。

Sānděngfēn rènyì jiǎo bù néng jǐn yòng chǐguī wánchéng.

Trisecting an arbitrary angle cannot be done with ruler and compass alone.

usage

Almost always appears in the phrase 尺规作图 ('ruler-and-compass construction'). The 尺 here is a straightedge (no markings used), not a measuring ruler.

尺 chǐ

规 guī