圆柱体切成6个相等的小圆柱体

  • 时间:2020-05-23 15:41:47
  • 分类:数学世界
  • 阅读:129 次

一个圆柱体,高是3米,把这个圆柱体切成6个相等的小圆柱体,表面积比原来增加了1256平方米,原来圆柱体的体积是多少平方米?

数学题解答:切成6个相等的小圆柱体,只能用横切的方法。这样一共增加了10个底面,这样根据增加的面积1256平方米,便可以求出底面积是:

1256÷10=125.6(平方米)。

圆柱的体积:125.6×3=376.8(平方米)。

答:原来圆柱体的体积是376.8平方米。

切圆柱

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