如何计算玻璃瓶(啤酒瓶)的容积

  • 时间:2020-04-06 17:58:42
  • 分类:数学世界
  • 阅读:137 次

如何计算玻璃瓶的容积?王东东是个善于动脑筋的孩子,他想测量一个瓶子的容积,结果量得它的底面内直径为6cm,并用下图的方法算出了这个瓶子的容积。你知道他是怎样算的吗?

酒瓶的容积计算

分析:从图中可以看出,瓶子里装了一些酒,除了酒以外就是空气了。所以瓶子的容积可以分为酒的体积与空气的体积两个部分,分别求出以后,再相加即得到了瓶子的容积。

解答过程:

酒的体积:3.14×(6÷2)×(6÷2)×6=169.56(立方厘米)

空气的体积:3.14×(6÷2)×(6÷2)×13=367.38(立方厘米)

瓶子的容积:169.56+367.38=536.94(立方厘米),问题至此得以解决。还可以依据乘法分配律把解答过程进行优化,在这里就不再详细写出了。

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