如图,在等腰直角
中,
,F是
边上的中点,点D,E分别在
,
边上运动,且保持
,连接
,
,
.在此运动变化的过程中,下列结论:①
;②
;③
;④四边形
的面积是
面积的一半;⑤
面积保持不变.其中正确的结论是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/18/c8853eaa-b2b3-4cc7-b5f8-d1296ad408fe.png?resizew=176)
更新时间:2023-12-20 13:04:03
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