多了两个边长为8cm的 正方形的面积
8*8*2=128
一个棱长为8厘米的立方体,把它截成两个长方体,表面积增加了多少立方厘米?
一个棱长为8厘米的立方体,把它截成两个长方体,表面积增加了多少立方厘米?
数学人气：849 ℃时间：2019-09-23 14:12:44
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