如图,
,分别以
为圆心,以长度5为半径作弧,两条弧分别相交于点
和
,依次连接
,连接
交
于点
.
(1)判断四边形
的形状并说明理由
(2)求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a38499c5945547221159e27fd3c72e3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098a3e7d1f1890863b7483a98b618119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d648acc4c1404fb370ad8d76853640e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)判断四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/2019/7/8/2242446764679168/2242608447234048/STEM/90213b06-0089-4db7-8764-45f2cf5ae97e.png)
2019·甘肃兰州·中考真题 查看更多[11]
甘肃省兰州市2019年中考数学试题人教版九年级下中考分类集训8 四边形人教版八年级下第十八章 平行四边形 18.2.2菱形安徽省安庆市第十四中学2019-2020学年九年级下学期3月月考数学试题吉林省长春市108中学2018-2019学年八年级下学期期末数学试题2020年安徽省安庆十四中中考数学3月模拟试题吉林市德惠市第三中学2019-2020学年八年级下学期月考数学试题重庆市江津区2020-2021学年八年级下学期期末数学试题辽宁省沈阳市第一三四中学2021-2022学年九年级上学期期末数学试题(已下线)专题12.18 垂直平分线(直通中考)-2023-2024学年八年级数学上册基础知识专项突破讲与练(人教版)(已下线)专题1.18 垂直平分线(直通中考)-2023-2024学年八年级数学上册基础知识专项突破讲与练(苏科版)
更新时间:2019-07-08 21:01:28
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解答题-作图题
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【推荐1】已知:如图,
,射线
平分
.
(
)尺规作图(不写作法,保留作图痕迹)作
的垂直平分线,与
相交于点
,连接
、
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(
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(
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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解答题-作图题
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【推荐2】如图,在△ABC中,AB>AC,AD平分∠BAC
(1)尺规作图:在AD上标出一点P,使得点P到点B和点C的距离相等(不写作法,但必须保留作图痕迹);
(2)过点P作PE⊥AB于点E,PF⊥AC于点F,求证:BE=CF;
(3)若AB=a,AC=b,则BE= ,AE= .
(1)尺规作图:在AD上标出一点P,使得点P到点B和点C的距离相等(不写作法,但必须保留作图痕迹);
(2)过点P作PE⊥AB于点E,PF⊥AC于点F,求证:BE=CF;
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![](https://img.xkw.com/dksih/QBM/2018/12/19/2100121575563264/2101746973138944/STEM/19ed46b3fca34fd8a3b5ee1875b3ade4.png?resizew=123)
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解答题-证明题
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【推荐1】如图,已知
中,
平分
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.
(1)试判断四边形
是什么特殊四边形?并证明你的结论.
(2)连接
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再添加一个什么条件,四边形
是平行四边形?写出你所添加的条件并给以证明.
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(1)试判断四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/922b1e3f3948b044ff8f53af2aa1f038.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4c865445dda4a59b6d5cb18fd74404.png)
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解答题-证明题
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【推荐2】如图,在平面直角坐标系中,点A、C的坐标分别为
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与y轴相交于点E.
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(2)求点E的坐标;
(3)若点F在线段
上,且F点的坐标为
时,连接
.试证明四边形
是菱形.
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(2)求点E的坐标;
(3)若点F在线段
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