等底等高的圆柱与圆锥体积之和

  • 时间:2020-05-27 19:06:25
  • 分类:数学世界
  • 阅读:139 次

等底等高的圆柱圆锥,它们的体积和是6.28平方厘米,体积之差是多少?

数学题解答:如果一个圆柱和一个圆锥等底等高,那么圆柱的体积是这个圆锥的体积的3倍。如果将圆锥体积看成1份,那么圆柱的体积就是3份。它们的和是3+1=4份,它们的差是3-1=2份。所以,此题可以像下面这样解答:

6.28÷(3+1)×(3-1)=3.14(立方厘米)

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