如图1,
中,
,D为
中点,把
纸片沿
对折得到
,如图2,点E和点F分别为
,
上的动点,把
纸片沿
折叠,使得点A落在
的外部,如图3所示.设
,则下列等式成立的是( )
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ac5396c5ea442e0364b50c1db3d2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a29fcf7726ed67c031c3cc94837491ee.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
21-22八年级上·北京·期中 查看更多[11]
北京市北京一零一中学2021-2022学年八年级上学期期中数学试题北京市北京交通大学附属中学2022-2023学年八年级上学期数学期中练习 北京市交通大学附属中学2022-2023学年八年级上学期期中数学试卷福建省厦门第六中学2022--2023学年八年级上学期期中数学试卷福建省福州市现代中学2022-2023学年八年级上学期数学期中试卷福建省福州连江一中贵安分校2023-2024学年八年级上学期月考数学试题(已下线)北京市海淀区2023-2024学年八年级上学期期中模拟数学试题B卷北京市海淀区民大附中2023-2024学年八年级上学期期中数学试题广东省东莞市东莞市厚街湖景中学2023-2024学年八年级上学期期中数学试题山东省德州市天衢新区2023-2024学年八年级上学期期中数学试题河南省信阳市息县关店理想学校2023-2024学年八年级上学期期中数学试题
更新时间:2023-11-06 16:24:46
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