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好吧问答库 > 把周长是18.84cm的圆片剪成同样大小的两个半圆每个半圆的周长是多少CM

把周长是18.84cm的圆片剪成同样大小的两个半圆每个半圆的周长是多少CM

2025年04月01日 21:26

有3个网友回答

网友（1）：

周长18.84cm，因此直径为18.84÷π = 6cm。
每个半圆的周长都是半个周长加一个直径，因此是18.84÷2+6 = 15.42 cm

网友（2）：

18.84÷3.14＝6(cm)
18.84÷2＋6＝15.42(cm)

网友（3）：

=18.84/2+18.84/3.14
=15.42cm

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