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class="list-title"></div> </div> <div id="qsuyyo2" class="cons"> <div id="w20ce0a" class="fkg"></div> <div id="2cw0ee0" class="ffo"></div> <p><em>遲青19313055785咨詢：</em> 一個(gè)等邊三角形如何只剪一刀能得到三個(gè)三角形和一個(gè)長(zhǎng)方形 <br /> <em>大同縣車圖回復(fù)：</em> ______ 把這個(gè)三角形對(duì)折二次然后從頂角垂直剪下去就可以了</p> <p><em>遲青19313055785咨詢：</em> 在正方形里怎樣剪出等邊三角形 - <br /> <em>大同縣車圖回復(fù)：</em> ______ 對(duì)折,打開(kāi),把折痕左右兩側(cè)的一組鄰角的頂點(diǎn)都折到折痕上,在折痕上的點(diǎn)與另兩頂點(diǎn)就形成了正三角形!</p> <p><em>遲青19313055785咨詢：</em> 把一個(gè)等邊三角形剪三刀,剪成四個(gè)完全相同的等邊三角形,怎么剪?<br /> <em>大同縣車圖回復(fù)：</em> ______ 找出各邊中點(diǎn),然后連結(jié),沿連線剪即可</p> <p><em>遲青19313055785咨詢：</em> 怎樣將一個(gè)等邊三角形剪三刀,可以分成兩個(gè)完全相同的直角三角形和兩個(gè)完全相同的鈍角三角形<br /> <em>大同縣車圖回復(fù)：</em> ______ 容易!我先敘述吧,你畫出來(lái).等邊三角形ABC,作AD垂直于BC于D,AD的中點(diǎn)E,聯(lián)結(jié)BE,CE,按照線路剪就是了</p> <p><em>遲青19313055785咨詢：</em> 怎樣在一張長(zhǎng)方形紙上剪出一個(gè)等腰三角形 - <br /> <em>大同縣車圖回復(fù)：</em> ______ 將長(zhǎng)方形對(duì)折, 沿對(duì)角線就可以前出一個(gè)等腰三角形.</p> <p><em>遲青19313055785咨詢：</em> 怎樣用一張正方形紙剪出一個(gè)等邊三角形<br /> <em>大同縣車圖回復(fù)：</em> ______ 將一對(duì)鄰角,向內(nèi)折30度.就會(huì)呈現(xiàn)出等邊三角形. </p> <p><em>遲青19313055785咨詢：</em> 一個(gè)等邊三角形的卡片如何只剪一刀就可以得到三個(gè)三角形和一個(gè)長(zhǎng)方形 - <br /> <em>大同縣車圖回復(fù)：</em> ______[答案]</span> 先按一條邊對(duì)折, 成一個(gè)直角三角形,再按斜邊對(duì)折,把角剪掉,就成了3個(gè)三角形和一個(gè)四邊形,是不是長(zhǎng)方型不敢保證,只是想了想沒(méi)實(shí)際做過(guò)</p> <p><em>遲青19313055785咨詢：</em> 把一個(gè)等邊三角形剪兩刀剪成一個(gè)等腰三角形和兩個(gè)完全相同的鈍角三角形怎么剪 - <br /> <em>大同縣車圖回復(fù)：</em> ______[答案]</span> 從任意一個(gè)角A作角平分線,在角平分線上找任意一點(diǎn)P和另外兩個(gè)點(diǎn)BC相連,剪PA,PB,PC即可完成.</p> <p><em>遲青19313055785咨詢：</em> 等邊三角形怎么剪 - <br /> <em>大同縣車圖回復(fù)：</em> ______ 用圓規(guī)利用SSS來(lái)畫出一個(gè)等邊三角形,然后用小刀沿直尺拉下來(lái).</p> <p><em>遲青19313055785咨詢：</em> 在正方形里怎樣剪出等邊三角形 - <br /> <em>大同縣車圖回復(fù)：</em> ______[答案]</span> 對(duì)折,打開(kāi),把折痕左右兩側(cè)的一組鄰角的頂點(diǎn)都折到折痕上,在折痕上的點(diǎn)與另兩頂點(diǎn)就形成了正三角形!</p> </div> </div> <div id="ossmkuw" class="clear"></div> <div id="ammcu0c" class="alinks"> 相關(guān)內(nèi)容：<li><a 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