如图,在菱形
中,
,分别以
,
为圆心,以大于
长为半径,作弧交于两点,过此两点的直线交
边于点
,连接
,
,则
的度数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fcde7cf117adeeebca1674d3a49352b.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/20d49404351575703cfe8325d1352ec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e359bc7a47c723102813220ef7283177.png)
更新时间:2024-05-08 12:15:32
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【推荐1】如图,在ABC中,按以下步骤作图:
①分别以A,B为圆心,大于
AB长为半径作弧,两弧相交于M,N两点;
②作直线MN交BC于D,连接AD.若AD=AC,∠B=25°,则∠C=_______ .
①分别以A,B为圆心,大于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
②作直线MN交BC于D,连接AD.若AD=AC,∠B=25°,则∠C=
![](https://img.xkw.com/dksih/QBM/2020/7/15/2506408512479232/2506991396986880/STEM/66c11a9d64b446c086914b8667210c88.png?resizew=127)
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【推荐2】如图,
是等腰直角三角形,
,D是斜边
的中点,E,F分别是
边上的点,且
,
,
.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a71a9d21f77e9535de152bb33f802bb.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
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【推荐1】如图,在
中,
,
,将
绕点
逆时针旋转得到
,若点
恰好落在线段
上,
、
交于点
,则
的度数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/18/4a02cc26-b4f1-46af-834c-265f23890ea4.png?resizew=144)
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【推荐2】在第1个
中,
,
,在
上取一点
,延长
到
,使得
;在
上取一点
,延长
到
,使得
;…,按此做法进行下去,第
个三角形的以
为顶点的内角的度数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff3562f3ae0832f91e6662aa677a8e38.png)
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【推荐1】如图,正△AEF的边长与菱形ABCD的边长相等,点E、F分别在BC、CD上,则∠B的度数是_____ .
![](https://img.xkw.com/dksih/QBM/2018/1/4/1853294452342784/1855845780447232/STEM/99be3fc53d1b4cbab99bcbcfa89ab36e.png?resizew=181)
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【推荐2】如图,点E、F分别是菱形
的边
、
上的点,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a911ba9342ec2d17b55839cb8838d9f.png)
______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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