如图,
是菱形
的对角线,若
,则
的度数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/26/36ca0227-9567-4d2d-b3cc-042544c08a95.jpg?resizew=208)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5157b42da58d55daad27d98b2fec15ff.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/26/36ca0227-9567-4d2d-b3cc-042544c08a95.jpg?resizew=208)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2022-06-22 11:04:44
|
相似题推荐
单选题
|
较易
(0.85)
【推荐1】如图,
,点E在AB上,过点E作AB的垂线交CD于点F.若∠ECD=40°,则∠CEF的大小为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/18/b8887e1d-9ac8-43b9-8189-a52cf21811e9.png?resizew=248)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/18/b8887e1d-9ac8-43b9-8189-a52cf21811e9.png?resizew=248)
A.40° | B.50° | C.60° | D.70° |
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【推荐2】如图,
内接于
,
为
的直径,直线
与
相切于点C,过点O作
,交
于点E.若
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f39f7ee851ee4409da58a7dfe852fae6.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab926d89b65f26c12e3da73ef1e5cf68.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐1】如图,在菱形
中,
,
,点
是对角线
的中点,
于点
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/2021/5/28/2730539847704576/2731989454135296/STEM/5ddf40fd-d135-4365-a538-d34f0c71bd11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eee296a7d9fba487f1485c61580196f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a4a26b9ab8f36629aee288b6a0fc77c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
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A.![]() | B.![]() | C.4 | D.2 |
您最近一年使用:0次
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【推荐2】在菱形
中,
,如图所示作图痕迹,过此两点的直线交
边于点E,连接
,
.则
的度数为( )
![](https://img.xkw.com/dksih/QBM/2021/8/27/2795069000335360/2795143905525760/STEM/c35d165f-d6a8-4f15-aa03-7b85a00d20cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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