如图,在△ABC中,点O是角平分线AD、BE的交点,若AB=AC=5,BC=6,则tan∠BOD的值是( )
![](https://img.xkw.com/dksih/QBM/2021/12/28/2889497959759872/2946674140372992/STEM/43bceed22db544f091964cf9f253e303.png?resizew=153)
![](https://img.xkw.com/dksih/QBM/2021/12/28/2889497959759872/2946674140372992/STEM/43bceed22db544f091964cf9f253e303.png?resizew=153)
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21-22九年级上·河南南阳·期末 查看更多[4]
河南省邓州市2021-2022学年九年级上学期期末质量评估数学试题(已下线)卷5-备战2022年中考数学【名校地市好题必刷】全真模拟卷(安徽专用)·第二辑河南省南阳市邓州市2021-2022学年九年级上学期期末数学试题河南省南阳市桐柏县四校联考2022-2023学年九年级上学期期末数学试题
更新时间:2022-03-29 14:46:47
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【推荐1】如图,点
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【推荐2】下列说法正确的是( )
A.等腰三角形的角平分线、高线、中线互相重合 |
B.有一个内角等于![]() |
C.直线外一点到这条直线的垂线段,叫做点到直线的距离 |
D.角平分线上的点到角两边的距离相等 |
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【推荐1】如图,在等腰
中,
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(1)尺规作图过程如下:
①作
边上的中线
;
②在
边上求作一点
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.
(2)在(1)的条件下,连接
,若
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的度数为( )
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(1)尺规作图过程如下:
①作
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
②在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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(2)在(1)的条件下,连接
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【推荐2】如图,在△ABC中,AB=AC=5,BC=6,点M为BC的中点,MN⊥AC于点N,则MN等于( )
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【推荐1】如图所示,在
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【推荐1】如图,已知
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