如图,将
绕点C顺时针旋转
得到
.若点A,D,E在同一条直线上,
,则
的为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/29/01d83207-5ce3-4656-b78c-e645f39eb967.png?resizew=172)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f850c705372b8a85489505da53239fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ec53f6d14ffde50237af92d783ee182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/29/01d83207-5ce3-4656-b78c-e645f39eb967.png?resizew=172)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-10-15 21:43:31
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【推荐1】如图所示,
,点A与点B,点C与点D是对应顶点,如果
,
,那么
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/caeb65d1-0c86-4dd9-bea0-ba73437fdce1.png?resizew=152)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde85ba424e87b620ba453b9283fdd3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8682a2c39e7b821b9aeb9478d5c6c71a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff1a61b7a239d532fbe15931061c079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/caeb65d1-0c86-4dd9-bea0-ba73437fdce1.png?resizew=152)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,在△ABC中,∠B=65°,∠DCA=100°,则∠A的度数是( )
![](https://img.xkw.com/dksih/QBM/2018/11/14/2075407439880193/2076278089252865/STEM/27506dea8a95466f909da8a6f94d7bc9.png?resizew=153)
![](https://img.xkw.com/dksih/QBM/2018/11/14/2075407439880193/2076278089252865/STEM/27506dea8a95466f909da8a6f94d7bc9.png?resizew=153)
A.55° | B.45° | C.35° | D.25° |
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【推荐1】已知在△ABC中,AB=AC,且∠B=α,则α的取值范围是( )
A.a≤45° | B.0° < α < 90° | C.α=90° | D.90° < α < 180° |
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【推荐2】如图,点A在
的边
的延长线上,过点B作
,
,
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c41158715d94c6c9ffebdee957d2618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4009aa13093cc3865dcd51b371892160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ef15c28cb324a018a8575133f403506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c543c3ddc3723fde6bbfca3ea3b921b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图,将
绕点A逆时针旋转
,得到
,若点D在线段
的延长线上,则
的大小为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/a9b70fe9-3799-45d9-a6a1-b3b5de5c0f0e.png?resizew=205)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85e283d58ea8a48989988ce61df58688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/a9b70fe9-3799-45d9-a6a1-b3b5de5c0f0e.png?resizew=205)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,△ABC中,∠CAB=70°,在同一平面内将△ABC绕点A旋转到△AED的位置,使得DC∥AB,则∠BAE等于( )
![](https://img.xkw.com/dksih/QBM/2021/11/29/2861849368240128/2866695270834176/STEM/3715778e-2b7f-467d-82ee-1ab20030deda.png?resizew=212)
![](https://img.xkw.com/dksih/QBM/2021/11/29/2861849368240128/2866695270834176/STEM/3715778e-2b7f-467d-82ee-1ab20030deda.png?resizew=212)
A.30 | B.40° | C.50° | D.60° |
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