1 . 如图,在
中,
,D为
延长线上一点,
,
,过D作
,交
的延长线于点H.
.
(2)求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe420c07ce33b530869dde98ede00a7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940699bc6596266f000d99efff2954d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2e36fe861dbf3d8e285110a283c4c61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7bd58fe744b40e401c44cbb1d5694fb.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
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2卷引用:2024年湖南省邵阳市邵东市邵东县两市镇向阳中学中考三模数学试题
名校
2 . 如图,小东展示了“过直线外一点作已知直线的平行线”的尺规作图过程,点
为直线
上一点,过点
的一条直线分别交两条平行线于点
,
,则有
,这一步的依据是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe4cac74ad93f13b52069c75650cb420.png)
A.同位角相等,两直线平行 | B.三角形中位线定理 |
C.平行线分线段成比例 | D.相似三角形的对应边成比例 |
您最近一年使用:0次
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4卷引用:湖南省怀化市2023-2024学年九年级下学期期中数学试题
3 . 点P在四边形
的对角线
上,直角三角板
绕直角顶点P旋转,其边
、
分别交
、
边于点M、N.
(1)【操作发现】
如图①,若四边形
是正方形,当
时,可知四边形
是正方形,显然
.当
与
不垂直时,判断确定
、
之间的数量关系; .(直接写出结论即可)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/4/bbc6a639-a675-4fcb-b49d-fa8046be7606.png?resizew=201)
(2)【类比探究】
如图②,若四边形
是矩形,试说明
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/4/11d7ac57-c2df-46bb-8c8a-ecc2168b8395.png?resizew=217)
(3)【拓展应用】
如图③,改变四边形
、
的形状,使四边形
内接于圆,其他条件不变,且满足
,
,
时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d246f9eceab371ebf47a47c2f11a4ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(1)【操作发现】
如图①,若四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31a470095e295c734a2f368cc6baf1b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3029ea5516e56e8d20594c71929624f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acd79bb9fb06f7c806eb6e17e4b613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/4/bbc6a639-a675-4fcb-b49d-fa8046be7606.png?resizew=201)
(2)【类比探究】
如图②,若四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e690473a729f961f124b577c9d938b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/4/11d7ac57-c2df-46bb-8c8a-ecc2168b8395.png?resizew=217)
(3)【拓展应用】
如图③,改变四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b51d3992644d37dc71c9b5a97d515c.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/267ace52b64e1e7dfc5211e033255b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95bde1fb33aeb9523ea29dcb5338bfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8d08ed44ae7ed558a9d7d4c21c2e3e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/4/63172b07-d524-4a0b-818a-31df25652044.png?resizew=237)
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4 . 如图,
、
相交于点
,点
、
分别在
、
上,
,如果
,
,
,
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c75d8581bb7b2a91795852acdc07d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65ff13b4da65c7da3d898ba58e967b24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2feb862043a4b1537d4d2c595a768b5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1bcc9813fb489eee0b9864f6a97812f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495be6a6b940e8affe38f2bcdee246b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/1/9e8930c4-0da7-499a-b25b-5b625849e808.png?resizew=151)
您最近一年使用:0次
2023-03-30更新
|
257次组卷
|
5卷引用:湖南省长沙市湖南师范大学附属中学2022-2023学年九年级数学上学期第三次检测卷
5 . 如图,点D为
的边
的中点,过点D作
,交
于点E,延长
至点F,使
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d021981c03e75b1a246d899dcc64656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe6d389a6c448d92b79d89bc9e8489f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216543f15ca6343472536814b4d67140.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/29/a331a322-8f0a-4d80-8958-3d88c2b36d27.png?resizew=122)
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6 . 如图,
,直线a,b相交于点
,与这三条平行线分别相交于点A、B、C和点D、E、F,下列比例式中错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/26/d4d2fc03-6590-4bf6-b854-4655a9f0357e.png?resizew=171)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b64254ccf2bf88337f4e88055a0cc4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/26/d4d2fc03-6590-4bf6-b854-4655a9f0357e.png?resizew=171)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-02-23更新
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8卷引用:湖南省岳阳市城区2022-2023学年九年级上学期期末教学质量监测数学试题
湖南省岳阳市城区2022-2023学年九年级上学期期末教学质量监测数学试题湖南省岳阳市岳阳楼区2022-2023学年九年级上学期期末数学试题湖南省永州市零陵区2023-2024学年九年级上学期期中数学试题(已下线)专题05 比例线段与平行线分线段成比例(五种考法)-【好题汇编】备战2023-2024学年九年级数学上学期期末真题分类汇编(湖南专用)重庆市第一中学校2023-2024学年九年级上学期数学开学考试试题安徽省池州市贵池区2023-2024学年九年级上学期联考数学试题(已下线)猜想07 相似三角形(四种基本模型专练)-2023-2024学年九年级数学上学期期末考点大串讲(人教版)(已下线)专题13 图形相似、相似三角形与位似作图及性质之十大题型-【好题汇编】备战2023-2024学年九年级数学上学期期末真题分类汇编(人教版)
7 . 已知:如下图,
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5277fa450a0c513a86a74420f8ee99f6.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21b14e543a0b4950752a4a26bec7221c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070bc896d35495237fd65576e9b6f88e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d649afbddd907f0dfec1420f02f82fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5277fa450a0c513a86a74420f8ee99f6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/29/6debafe0-6a80-4f79-a24f-8108f6016771.png?resizew=150)
您最近一年使用:0次
2023-02-19更新
|
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|
4卷引用:湖南省永州市道县2022-2023学年九年级上学期期末质量监测数学试题(A卷)
湖南省永州市道县2022-2023学年九年级上学期期末质量监测数学试题(A卷)(已下线)专题05 比例线段与平行线分线段成比例(五种考法)-【好题汇编】备战2023-2024学年九年级数学上学期期末真题分类汇编(湖南专用)河南省驻马店市泌阳县2023-2024学年九年级上学期期中数学试题(已下线)第4章 图形的相似(单元测试·基础卷)-2023-2024学年九年级数学上册基础知识专项突破讲与练(北师大版)
8 . 如图,在平面直角坐标系中,
的顶点
在
轴正半轴上,
是
的中线,点
,
在反比例函数
的图象上,则
的面积等于______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/498bcfd1aac03057dcd0adef2dd113a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/16/2b54944a-9bda-4afe-ac74-d7b60b5e1c9e.png?resizew=126)
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9 . 如图,直线
,直线
分别与
,
,
相交于点
、
、
,直线
分别与
,
,
相交于点
,
,
,已知
,
,则
的长度为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/15/d9986ecf-078d-422c-af41-c40d42ed862f.png?resizew=162)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b64254ccf2bf88337f4e88055a0cc4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56391cc09f9553c291a710954d9405ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea147ada4f0aefdd3808a6a1133792eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/15/d9986ecf-078d-422c-af41-c40d42ed862f.png?resizew=162)
A.6 | B.4 | C.5 | D.10 |
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名校
10 . 如图,点G、F分别是
的边
、
上的点,
的延长线与
的延长线相交于点A,
交
于点E,则下列结论错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/4/67935a98-8e1f-46e1-8896-22ea23ff2df9.png?resizew=121)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e57a13c665af88f326c9890072bf73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c436f108fd4921dae15ecff19270237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d9b798a71ae94839e1ebb0a644202e8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/4/67935a98-8e1f-46e1-8896-22ea23ff2df9.png?resizew=121)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-02-09更新
|
80次组卷
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25卷引用:湖南省娄底市娄星区2021-2022学年九年级上学期期末数学试题
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