Mathematics
Junior High
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周の長さの求め方を教えてください( ˙ᵕ˙ 🙏🏼)

(3) 半径4cmの半円

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円周=直径×π
  (半径×2×π)
今回は半円なので気を付けてください。

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周の長さなら直径部分もいるよ

なゆた

https://www.clearnotebooks.com/ja/questions/1516712

この時点で言ってたのに…

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