证明三角形的面积
来源:学生作业帮 编辑:百度作业网作业帮 分类:数学作业 时间:2024/08/12 15:19:28
已知:如图所示,在正方形ABCD的边BC的延长线上取一点E,使CE=AC,AE与CD交于点F,求角AFC的度数,若AB=4cm,求三角形ACE的面积.
![](http://img.wesiedu.com/upload/4/72/472b0879a225db54a0874b61a2f70d5e.png)
![](http://img.wesiedu.com/upload/4/72/472b0879a225db54a0874b61a2f70d5e.png)
![证明三角形的面积](/uploads/image/z/3917053-37-3.jpg?t=%E8%AF%81%E6%98%8E%E4%B8%89%E8%A7%92%E5%BD%A2%E7%9A%84%E9%9D%A2%E7%A7%AF)
解题思路: 见解答
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=50572")}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