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    方仁055主页 >> 文章 >> 解题指导 >> 浏览信息《如何包装最合理》

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    星期四   晴天 
    主题 如何包装最合理

    以下内容为程序代码:
    <p center; MARGIN: 0cm 0cm 0pt 0.05pt" class="MsoNormal" align="center"><span 黑体; FONT-SIZE: 26pt">如何包装最合理&nbsp;</span><p center; MARGIN: 0cm 0cm 0pt 0.05pt" class="MsoNormal" align="center"><font face="Times New Roman"><span 穝灿砰; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-fareast-font-family: 穝灿砰; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">兴化市</span><span 穝灿砰; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-fareast-font-family: 穝灿砰; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-fareast-language: ZH-CN">楚水</span><span 穝灿砰; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-fareast-font-family: 穝灿砰; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">小学</span><span 14pt; mso-bidi-font-size: 10.0pt; mso-fareast-font-family: 穝灿砰"><span yes">&nbsp; </span></span><span 穝灿砰; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-fareast-font-family: 穝灿砰; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">於以华</span><span 14pt; mso-bidi-font-size: 10.0pt; mso-fareast-font-family: 穝灿砰">&nbsp;</span></font><p 24pt; TEXT-INDENT: 28.05pt; MARGIN: 0cm 0cm 0pt" class="MsoNormal"><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">生活中常需要到商店里去买东西,东西多了营业员就要给你包装起来。那如何包装最合理呢?</span><span 14pt; mso-bidi-font-size: 10.0pt">&nbsp;</span><p 24pt; TEXT-INDENT: 28.05pt; MARGIN: 0cm 0cm 0pt" class="MsoNormal"><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">先来看一道题目:</span><span 14pt; mso-bidi-font-size: 10.0pt">&nbsp;</span><p 24pt; TEXT-INDENT: 28.05pt; MARGIN: 0cm 0cm 0pt" class="MsoNormal"><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">一包香烟的形状是长方形,它的长</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">9</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">厘米,宽</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">5</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">厘米</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman"> </font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">,高</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">2</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">厘米。把</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">10</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">包香</span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-fareast-language: ZH-CN">烟</span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">包装在一起形成一个大长方体,称为一条。可以怎样包装?算一算需要多少包装纸(包装纸的重叠部分忽略不计)?你认为哪一种包装方案比较合理?</span><span 14pt; mso-bidi-font-size: 10.0pt">&nbsp;</span><p 24pt; TEXT-INDENT: 28.05pt; MARGIN: 0cm 0cm 0pt" class="MsoNormal"><shapetype><stroke joinstyle="miter"></stroke><formulas><f eqn="if lineDrawn pixelLineWidth 0"></f><f eqn="sum @0 1 0"></f><f eqn="sum 0 0 @1"></f><f eqn="prod @2 1 2"></f><f eqn="prod @3 21600 pixelWidth"></f><f eqn="prod @3 21600 pixelHeight"></f><f eqn="sum @0 0 1"></f><f eqn="prod @6 1 2"></f><f eqn="prod @7 21600 pixelWidth"></f><f eqn="sum @8 21600 0"></f><f eqn="prod @7 21600 pixelHeight"></f><f eqn="sum @10 21600 0"></f></formulas><path o:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></path><lock aspectratio="t" v:ext="edit"></lock></shapetype><shape 2; POSITION: absolute; TEXT-ALIGN: left; MARGIN-TOP: 473.35pt; WIDTH: 380.25pt; HEIGHT: 156.55pt; MARGIN-LEFT: 66.55pt; LEFT: 0px; mso-wrap-distance-left: 8.5pt; mso-wrap-distance-top: 8.5pt; mso-wrap-distance-right: 8.5pt; mso-wrap-distance-bottom: 8.5pt; mso-position-horizontal-relative: page; mso-position-vertical-relative: page"><fill type="frame"></fill><imagedata o:title="" src="></imagedata><wrap type="square" anchory="page" anchorx="page" side="largest"></wrap></shape><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">10</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">包香</span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-fareast-language: ZH-CN">烟</span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">包装成一条,是一个长方体的形状。我们可以分类排出各种包装方案,然后利用长方体的表面积计算公式,算出每种包装方案所使用的包装纸的面积。因为</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">10</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">=</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">10</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">&times;</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">1</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">&times;</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">1</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">或</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">10</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">=</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">2</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">&times;</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">5</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">&times;</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">1</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">,所以可以有两类包装法。</span><span 14pt; mso-bidi-font-size: 10.0pt">&nbsp;</span><p 24pt; TEXT-INDENT: 28.05pt; MARGIN: 0cm 0cm 0pt" class="MsoNormal"><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">&ldquo;</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">10</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">&times;</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">1</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">&times;</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">1</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">&rdquo;的类型有以下三种包装法。每个图的下面分别标出了每种包装法包装后所形成的长方体的长、宽、高和表面积(所需包装纸)的大小。</span><span 14pt; mso-bidi-font-size: 10.0pt">&nbsp;</span><p 28pt; MARGIN: 0cm 0cm 0pt 0.05pt" class="MsoNormal"><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">&nbsp;</font></span><p 28pt; MARGIN: 0cm 0cm 0pt 0.05pt" class="MsoNormal"><shape 1; POSITION: absolute; TEXT-ALIGN: left; MARGIN-TOP: 94.1pt; WIDTH: 404.15pt; HEIGHT: 164.25pt; MARGIN-LEFT: 63.45pt; LEFT: 0px; mso-wrap-distance-left: 8.5pt; mso-wrap-distance-top: 8.5pt; mso-wrap-distance-right: 8.5pt; mso-wrap-distance-bottom: 8.5pt; mso-position-horizontal-relative: page; mso-position-vertical-relative: page"><font face="Times New Roman"><fill type="frame"></fill><imagedata o:title="" src="></imagedata><wrap type="square" anchory="page" anchorx="page" side="largest"></wrap></font></shape><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">&ldquo;</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">5</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">&times;</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">2</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">&times;</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">1</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">&rdquo;的类型,共有以下六种包装法。</span><span 14pt; mso-bidi-font-size: 10.0pt">&nbsp;</span><p 24pt; TEXT-INDENT: 28pt; MARGIN: 0cm 0cm 0pt" class="MsoNormal"><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">根据上面的分析,我们可以看出包装</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">10</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">包香</span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-fareast-language: ZH-CN">烟</span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">共有九种不同的包装方法。从使用包装纸的大小来看,</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">560</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">平方厘米的包装方案是用纸最少的,</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">1136</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">平方厘米的包装方案是用纸最多的。仔细观察包装后所形成的长方体的形状(主要是它们的长、宽、高),通过比较我们不难发现有以下规律:一个长方体的体积一定时,当长、宽、高的差越小时,它的表面积(也就是包装纸的大小)越小,相等时(此时为正方体)则达到最小;当长、宽、高的差越大时,它的表面积(也就是包装纸的大小)越大。</span><span 14pt; mso-bidi-font-size: 10.0pt">&nbsp;</span><p 24pt; TEXT-INDENT: 27.8pt; MARGIN: 0cm 0cm 0pt" class="MsoNormal"><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">当然,由于考虑包装的广告效应和携带方便,香</span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-fareast-language: ZH-CN">烟</span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">的实际包装并没有完全从包装纸的大小出发,而是采用了&ldquo;</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">5</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">&times;</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">2</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">&times;</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">1</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">&rdquo;的包装类型(即上图中表面积是</span><span 14pt; mso-bidi-font-size: 10.0pt"><font face="Times New Roman">722</font></span><span 宋体; FONT-SIZE: 14pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">平方厘米的包装方法)。但生活中的许多包装问题我们应从节约能源的角度来考虑包装的合理性,即包装后的物体越接近正方体(也就是长、宽、高的差越小)所消耗的包装纸张越少</span><span 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;">。</span><span 10.5pt; mso-bidi-font-size: 10.0pt">&nbsp;</span>
    方仁055 发表于:2011-4-28 16:38:39

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    码确 发表于:2018-9-5 20:54:08