图1是古代数学家杨辉在《详解九章算法》中对“�的计算”的相关研究数学兴趣小组也类比进行了如下探究:如图2,正八边形游乐城 , 的边长为长 Template


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tomski图1是古代数学家杨辉在《详解九章算法》中对“�的计算”的相关研究数学兴趣小组也类比进行了如下探究:如图2,正八边形游乐城 , 的边长为长 coloring