40/8=5
长=35
宽=5
一个长方形的周长是80厘米,已知长方形的宽是长的七分之一,这个长方形的长和宽各
一个长方形的周长是80厘米,已知长方形的宽是长的七分之一,这个长方形的长和宽各
数学人气:324 ℃时间:2019-11-01 23:41:28
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