1、做10个棱长8厘米的正方体铁框架,至少需多长的铁丝?2、用铁皮做一个铁盒,使它的长、宽、高分别是1.8分米,1.5分米和1.2分米,做一个这样的铁盒至少要用铁皮多少平方米?3、做一个
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![1、做10个棱长8厘米的正方体铁框架,至少需多长的铁丝?2、用铁皮做一个铁盒,使它的长、宽、高分别是1.8分米,1.5分米和1.2分米,做一个这样的铁盒至少要用铁皮多少平方米?3、做一个](/uploads/image/z/1106228-20-8.jpg?t=1%E3%80%81%E5%81%9A10%E4%B8%AA%E6%A3%B1%E9%95%BF8%E5%8E%98%E7%B1%B3%E7%9A%84%E6%AD%A3%E6%96%B9%E4%BD%93%E9%93%81%E6%A1%86%E6%9E%B6%EF%BC%8C%E8%87%B3%E5%B0%91%E9%9C%80%E5%A4%9A%E9%95%BF%E7%9A%84%E9%93%81%E4%B8%9D%EF%BC%9F2%E3%80%81%E7%94%A8%E9%93%81%E7%9A%AE%E5%81%9A%E4%B8%80%E4%B8%AA%E9%93%81%E7%9B%92%EF%BC%8C%E4%BD%BF%E5%AE%83%E7%9A%84%E9%95%BF%E3%80%81%E5%AE%BD%E3%80%81%E9%AB%98%E5%88%86%E5%88%AB%E6%98%AF1.8%E5%88%86%E7%B1%B3%EF%BC%8C1.5%E5%88%86%E7%B1%B3%E5%92%8C1.2%E5%88%86%E7%B1%B3%EF%BC%8C%E5%81%9A%E4%B8%80%E4%B8%AA%E8%BF%99%E6%A0%B7%E7%9A%84%E9%93%81%E7%9B%92%E8%87%B3%E5%B0%91%E8%A6%81%E7%94%A8%E9%93%81%E7%9A%AE%E5%A4%9A%E5%B0%91%E5%B9%B3%E6%96%B9%E7%B1%B3%EF%BC%9F3%E3%80%81%E5%81%9A%E4%B8%80%E4%B8%AA)
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