一礼品盒,长20cm,宽2.5cm,高30cm,捆扎这种礼品盒,接头处的系细带长25cm,捆扎这种礼品盒至少需要多少厘米长的细带?
一礼品盒,长20cm,宽2.5cm,高30cm,捆扎这种礼品盒,接头处的系细带长25cm,捆扎这种礼品盒至少需要多少厘米长的细带?
数学人气:102 ℃时间:2019-08-26 08:07:05
优质解答
(20+30)*2+(2.5+30)*2+25=100+65+25=190
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