一种彩电的包装盒是长方体,长和宽都是6分米.制作这样的包装盒至少需要多少平方分米的硬纸板?
一种彩电的包装盒是长方体,长和宽都是6分米.制作这样的包装盒至少需要多少平方分米的硬纸板?
数学人气:684 ℃时间:2019-10-23 08:49:32
优质解答
就是求包装盒的表面积.表面积=(长x宽+宽x高+长x高)x2 即:(6x6+6x6+6x8)x2 =120x2 =240(平方分米) 答:制作这样的包装纸盒至少需要240平方分米的硬纸板.
我来回答
类似推荐
猜你喜欢
- 1小练笔
- 2填近义词:东()西();南()北();上()下();左()右()
- 3When the twins (arrive) their school,they found there was nobody there
- 4已知镭的原子序数是88,原子质量是226,则镭核所带电荷量是多少c?
- 5立方怎么算我的长3米.宽80厘米.高90厘米等于多少个立方
- 6以my favorite job为题的作文
- 7Mother asked me "Had you finished your homework before you watched TV?"改成间接引语
- 8Do you think everyone enjoys his weekend?(同义句)Do you think everyone ____ ____ ____ ____?
- 9there is a bird in the sky 还是 there is bird in the sky
- 10、甲乙两港相距120千米,A、B两船从甲乙两港相向而行6小时相遇.A船顺水,B船逆水.相遇时A船比B船多行走4