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(2009•烟台)如图,将两张长为8,宽为2的矩形纸条交叉,使重叠部分是一个菱形...
(2009•烟台)如图,将两张长为8,宽为2的矩形纸条交叉,使重叠部分是一个菱形,容易知道当两张纸条垂直时,菱形的周长有最小值8,那么菱形周长的最大值是
cm.
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