数学题:再加多少毫升牛奶,才可以把杯子装满?

  • 时间:2020-05-05 19:39:23
  • 分类:数学世界
  • 阅读:142 次

数学题:有一只圆柱形的玻璃杯,测得内直径是8cm,内装牛奶深度是6cm,正好是杯内容量的五分之四,再加多少毫升牛奶,才可以把杯子装满?

数学题解答:方法是先算出玻璃杯的容积,再乘(1- 4/5)。容积的算法与体积一样,都是用底面积乘高。

3.14×(8÷2)2×6×(1- 4/5)=60.288(毫升)

问题得以解决。

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