如图,
中,
,
的垂直平分线分别交
于点D,E,连接
,则
的大小为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c5840e0454fdec7d2158072c43b8db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9a415bdb7b4e1e35c18a9e53205392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6282292819434a8905a212427613fd85.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/35cfb83c-f8d0-4476-97f7-a0b062a1b212.png?resizew=136)
A.40° | B.50° | C.80° | D.100° |
更新时间:2024-03-06 12:09:52
|
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【推荐1】如图,已知m∥n,将含30°的直角三角板如图放置,若∠1=40°,则∠2=( )
![](https://img.xkw.com/dksih/QBM/2021/4/9/2696036668055552/2701710470053888/STEM/c13eaab6-9fd9-4ce4-a959-e4b8e5ef7892.png)
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A.40° | B.30° | C.20° | D.10° |
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【推荐2】如图,在
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是
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的度数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640e9e7c56e8eeda044fb55396088816.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998329f9cdb86f5d60d7d5d70fc3781e.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图,在
中,
,
,分别以点
和点
为圆心,大于
的长为半径画弧,两弧相交于点
,作直线
,交
于点
,连接
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/2021/12/14/2872451782230016/2879439161319424/STEM/f68a8632-69f7-4da3-bb87-d8d37b12c00e.png?resizew=209)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e40cf2b11ab4c3588af9c64222bb8bab.png)
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您最近一年使用:0次
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【推荐2】如图,
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是
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A.13 | B.14 | C.15 | D.16 |
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