1种：一层5盒,2层,高撂起来,则长0.6,宽0.4×5=2,高0.2×2=0.4
﹙ 0.6×2+0.6×0.4+2×0.4）×2=4.48
2种：一层5盒,2层,宽撂起来,则和长0.6,宽0.4×2=0.8,高0.2×5=1
﹙0.6×0.8+0.6×1+0.8×1）×2=5.76
长0.6,高0.2宽0.4,两种方案将10盒火柴包成一大盒,并计算每种方案至少各要用多少平方分米包装纸
长0.6,高0.2宽0.4,两种方案将10盒火柴包成一大盒,并计算每种方案至少各要用多少平方分米包装纸
数学人气：179 ℃时间：2019-10-23 07:15:53
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