如图,在
中,
为
中点,
为边
上的动点,连接
,
交
的延长线于点
,若
,则
的值是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe446a0456e9168028baee032d8d7d23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ad4c0ba3a6750537789844d0ec419d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bb5a267152a14e2c27b34f058ed357.png)
23-24八年级上·陕西榆林·开学考试 查看更多[3]
陕西省 榆林市横山区横山中学2023-2024学年八年级上学期开学数学试题山东省淄博市高青县2023-2024学年七年级上学期期中数学试题(已下线)专题4.30 三角形(常考核心知识点分类专题)(基础练)-2023-2024学年七年级数学下册基础知识专项突破讲与练(北师大版)
更新时间:2024-01-16 17:51:55
|
相似题推荐
填空题
|
较易
(0.85)
【推荐1】如图,有平面镜
与
,光线由水平方向射来,传播路线
,已知平面镜
平行于平面镜
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc310194575262fb45352c2fbc19868.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dff7949b65cf159c08895164f46dda3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/057cdb4057bca398a838e868efd360f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d4fc47a5814493cc5facdc3ab296dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e54ccc7d2f8af35a252977d6e2af4663.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc310194575262fb45352c2fbc19868.png)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712408837095424/2722296087740416/STEM/206fa4ab-122c-43ae-b968-1b96de960d7d.png)
您最近一年使用:0次
填空题
|
较易
(0.85)
真题
名校
【推荐2】已知直线
,将一块含
角的直角三角板ABC按如图所示方式放置(
),并且顶点A,C分别落在直线a,b上,若
,则
的度数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d553efed052e7e0777728ef622a5c39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996bf3d35b6763cbc1a423b13a9df2dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba5db30bb3d52a2781a8159ab1c76deb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e4cfd5b89b9f65787ed15792cae9c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/6/8/57a60c59-bdf3-46c6-9246-b873bd2e6049.png?resizew=190)
您最近一年使用:0次
填空题
|
较易
(0.85)
名校
【推荐1】如图,矩形
中,
,E为
边上一点,且
,将
沿
折叠,点C落在点
.若折叠后点A,
,E恰好在同一直线上,则
的长为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca7e1a727ba332984ad857b3d25344d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72f7d9f5e71bfef8188b1216c1276c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2689f0ce5ab3467d8214794d8acb2bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/261924df-752b-4abd-b1b2-1d451f031a3c.png?resizew=154)
您最近一年使用:0次
填空题
|
较易
(0.85)
【推荐2】如图,A、B、C在同一直线上,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae248960d8c1677cf948f8251275e863.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55742f647ad1af4e776a2b2bd5ef6f59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25c31676ed7f83abca2bf307cbb8aa6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf7679c8b4b1e442ce4286d4b0e9c32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae248960d8c1677cf948f8251275e863.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/28/3ccc0472-72d1-4adf-afc5-df65b428a51a.png?resizew=142)
您最近一年使用:0次