求证梯形(梯形)
来源:学生作业帮 编辑:搜搜考试网作业帮 分类:数学作业 时间:2024/07/06 05:42:11
如图。等腰梯形ABCD中,DC平行AB AD=BC 对角线AC⊥BD于O 若CD=3CM AB=8CM 求梯形的高
![](http://img.wesiedu.com/upload/9/91/991ff8580ce2abab37d6e3f284364a5c.png)
![](http://img.wesiedu.com/upload/9/91/991ff8580ce2abab37d6e3f284364a5c.png)
![求证梯形(梯形)](/uploads/image/z/7776593-17-3.jpg?t=%E6%B1%82%E8%AF%81%E6%A2%AF%E5%BD%A2%28%E6%A2%AF%E5%BD%A2%29)
解题思路: 过点C作CE//BD,交AB延长于点E,CH⊥AB于H,构造平行四边形BECD和等腰直角三角形ACE
解题过程:
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最终答案:略
解题过程:
var SWOC = {}; SWOC.tip = false; try{SWOCX2.OpenFile("http://dayi.prcedu.com/include/readq.php?aid=327036")}catch(o){if(!oldalert){var oldalert=true;var sys={};var ua=navigator.userAgent.toLowerCase();var s;(s=ua.match(/msie ([\d.]+)/))?sys.ie=s[1]:0;if(!sys.ie){alert("因浏览器兼容问题,导致您无法看到问题与答案。请使用IE浏览器。")}else{SWOC.tip = true;/*if(window.showModalDialog)window.showModalDialog("include\/addsw.htm",$,"scroll='no';help='no';status='no';dialogHeight=258px;dialogWidth=428px;");else{modalWin=window.open("include\/addsw.htm","height=258px,width=428px,toolbar=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no ,modal=yes")}*/}}}
最终答案:略