✨ Best Answer ✨
まずこの扇形の中心角を求めます
360×12π/7×2π=2160/7
面積の公式に当てて
7×7×π×2160/2520=7×7×π×6/7
=42πcm²
になると思います
頑張ってください( ¨̮ )⚐⚑ﾞ
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✨ Best Answer ✨
まずこの扇形の中心角を求めます
360×12π/7×2π=2160/7
面積の公式に当てて
7×7×π×2160/2520=7×7×π×6/7
=42πcm²
になると思います
頑張ってください( ¨̮ )⚐⚑ﾞ
Users viewing this question
are also looking at these questions 😉
ありがとうございます😊