因为是盒子 铁丝笔直 所以铁丝可以放对角线上
所以用勾股定理
12^2+4^2=160
所以
做长可达到根号下160厘米哦是等于169
所以开根号 最长为13cm
有一个长为12cm,宽为4cm,高为3cm的长方体铁盒,在其内部要放一根笔直铁丝,则铁丝最长可从达到?cm
有一个长为12cm,宽为4cm,高为3cm的长方体铁盒,在其内部要放一根笔直铁丝,则铁丝最长可从达到?cm
数学人气：744 ℃时间：2020-01-27 23:16:13
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