Ministry of Education 《Concised Mandarin Chinese Dictionary》

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鈍角

Bopomofo

ㄉㄨㄣ^ˋ ㄐㄧㄠ^ˇ

Hanyu Pinyin

dùn jiǎo

Interpretation

數學上指大於90度而小於180度的角。 例正五邊形的每一個內角都是鈍角。　

Picture

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