銳角

銳角

See also: 鋭角 and 锐角

Chinese

		acute	horn; angle; corner
trad. (銳角)		銳	角
simp. (锐角)		锐	角

Pronunciation

• Mandarin

  (Pinyin): ruìjiǎo

  (Zhuyin): ㄖㄨㄟˋ ㄐㄧㄠˇ

• Cantonese (Jyutping): jeoi⁶ gok³

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• Mandarin
  • (Standard Chinese)⁺
    • Pinyin: ruìjiǎo
    • Zhuyin: ㄖㄨㄟˋ ㄐㄧㄠˇ
    • Gwoyeu Romatzyh: rueyjeau
    • Tongyong Pinyin: ruèijiǎo
    • Sinological IPA ^(key): /ʐweɪ̯⁵¹ t͡ɕjɑʊ̯²¹⁴⁻²¹⁽⁴⁾/
• Cantonese
  • (Standard Cantonese, Guangzhou)⁺
    • Jyutping: jeoi⁶ gok³
    • Yale: yeuih gok
    • Cantonese Pinyin: joey⁶ gok⁸
    • Guangdong Romanization: yêu⁶ gog³
    • Sinological IPA ^(key): /jɵy̯²² kɔːk̚³/

Noun

銳角

1. (geometry) acute angle
2. (architecture) angled bastion, such as those employed in Renaissance Europe's star forts.

Antonyms

• (mathematics): 鈍角／钝角 (dùnjiǎo)

References

• Tonio Andrade's The Gunpowder Age (2016), p. 212.

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Japanese

Kanji in this term
銳	角
えい Hyōgaiji	かく Grade: 2
on’yomi

Noun

銳角 (kyūjitai kanji, shinjitai kanji 鋭角, hiragana えいかく, rōmaji eikaku)

1. (geometry) acute angle

Antonyms

• 鈍角 (どんかく) (donkaku, “obtuse angle”)

Compounds

• 銳角三角形 (えいかくさんかっけい) (eikaku sankakkei, “acute triangle”)