数学题:一个长方形铁皮,长为32厘米
- 时间:2020-05-02 12:13:06
- 分类:数学世界
- 阅读:150 次
数学题:一个长方形铁皮,长为32厘米,在它四个顶点分别剪去边长为4厘米的正方形,然后折起来焊成一个无盖的长方形铁皮盒。已知它的容积是480立方厘米,原来这块铁皮的面积是多少?
数学题解答:

无盖铁皮盒子的长:32-4-4=24(厘米)
无盖铁皮盒子的高:4厘米
无盖铁皮盒子的宽:不知道,需要计算。但是我们知道它的容积是480立方厘米。
所以先算出无盖铁皮盒子的宽:480÷24÷4=5(厘米)
铁皮原来的宽:5+4+4=13(厘米)
铁皮的面积:32×13=416(平方厘米)
推荐阅读:How to Generate Parentheses using Bruteforce or Depth First Sear Algorithm to Construct Binary Tree from Preorder and Inorder Tra The 24 Game Algorithm using Depth First Search How to Count the Path Sum from a Binary Tree using Depth First S How to Multiply Two Matrices in C++? How to Compute the Number of Equivalent Domino Pairs? Stay In The Loop: Google Will Make Sure You Never Miss A Mention 5 Ways to Get More Passive Income for your Blog 4 Useful Website Building Tips for the Rookie Blogger Do You Know How To Keep Your WordPress Site Safe?
- 评论列表
-
- 添加评论