如图,正方形
的对角线
是菱形
的一边,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1507da3daed983c2f355d4caebb66d72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edabae47b9b9df627aaa281ca0f4e71a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-05-14 12:40:01
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【推荐1】如图,菱形
中,
,
是边
上的点,沿
折叠
,点
恰好落在
上的点
,那么
的度数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3975d0e87ea5028d37444dca76b331.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77282d5b97a60264cf15fb74b48e4b59.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/25/472c5203-8cf1-4491-aca4-b3ad936c0738.png?resizew=174)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】下列命题中,错误的是( )
A.一组对边平行,另一组对边相等的四边形是平行四边形 |
B.矩形既是轴对称图形,又是中心对称图形 |
C.菱形的一条对角线平分一组对角 |
D.对角线相等且互相垂直平分的四边形是正方形 |
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【推荐1】如图,以正方形ABCD的边AB为一边向外作等边△ABE,则∠AED的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/4/063ddd91-5b22-4692-837b-91566fb272e4.png?resizew=231)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/4/063ddd91-5b22-4692-837b-91566fb272e4.png?resizew=231)
A.15° | B.20° | C.22.5° | D.25° |
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【推荐2】将一个正方形和两个正三角形如图摆放,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c05418455caee9013d2785847f2529f3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/22/0e422b9e-6667-42d6-9e23-c9932ad02f91.png?resizew=117)
A.![]() | B.![]() | C.![]() | D.![]() |
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