名校
1 . 下列说法中,正确的是( )
A.有一个角是![]() |
B.两个图形关于某直线对称,则这两个图形一定分别位于这条直线的两侧 |
C.平面内,到三角形三个顶点距离相等的点是三角形三边垂直平分线的交点 |
D.等腰三角形的角平分线、中线、高线互相重合 |
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2 . 如图,在四边形
中,连接
.
(1)尺规作图:作
的垂直平分线
,分别交
于点
(不写作法,保留作图痕迹)
(2)连接
,若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/12/7e1c60e7-c5f7-4340-837f-ce54f748a9fa.png?resizew=126)
(1)尺规作图:作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac31b9badf70a20d3b7d15f72da16d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e8589b90b9f931af7dc863af83fb71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a55a1a244f81097e05e715b69580faa.png)
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3 . 如图,在
中,
,
的平分线交
于点D.
(1)作
的垂直平分线,分别交
于点E,F,G.连接
.(要求:尺规作图,不写作法,保留作图痕迹.)
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/10/14fb8d5f-a1ae-4942-bfd5-0cf499796a54.jpg?resizew=123)
(1)作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34a2caed21a6f1031da5c38c8401e385.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304f8bf77804717112155e4c176e1ce6.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a3600b1760a63a10c9a0429b439dc1.png)
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4 . 如图,
的周长为20,
的垂直平分线交
于点D,垂足为E,若
,则
的周长是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86338536656046e93b53672ade9a78b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f517953a21c2a45fd8465072c44bfc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/30/f7b4f8b3-8497-40f3-9af2-e5634ed87799.png?resizew=116)
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2023-10-29更新
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126次组卷
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4卷引用:广西壮族自治区柳州市第八中学2023-2024学年八年级上学期期中数学试题
名校
5 . 如图,在
中,
边上的垂直平分线
与
、
分别交于点D、E,且
.
;
(2)若
,
,求
的长.
![](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/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b85351be56cc6a91716dfcebbef9009.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
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2023-10-27更新
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261次组卷
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22卷引用:广西河池地区2021-2022学年八年级下学期期中考试数学试题
广西河池地区2021-2022学年八年级下学期期中考试数学试题广东省湛江市遂溪县2021—2022学年八年级下学期期末调研考试数学试卷(已下线)第13课 探索勾股定理-【帮课堂】2022-2023学年八年级数学上册同步精品讲义(浙教版)江苏省南京市科利华中学2022-2023学年八年级上学期期中数学试题(已下线)第17章 勾股定理(A卷·知识通关练) -【单元测试】2022-2023学年八年级数学下册分层训练AB卷(人教版)(已下线)专题17.6 勾股定理的逆定理(知识讲解)-2022-2023学年八年级数学下册基础知识专项讲练(人教版)(已下线)专题18.6 勾股定理的逆定理(知识讲解)-2022-2023学年八年级数学下册基础知识专项讲练(沪科版)山东省日照市东港区日照港中学2022-2023学年八年级下学期3月月考数学试题(已下线)专题01三角形的证明(知识串讲+热考题型)-2022-2023学年八年级数学下学期期中期末考点大串讲(北师大版)广东省广州市第六中学2022-2023学年八年级下学期期中数学试卷广东省肇庆市2021-2022学年八年级下学期期末数学试题福建省龙岩市长汀城区六校联考2022—2023学年八年级下学期月考数学试题(已下线)第14讲 勾股定理的逆定理-【暑假自学课】2023年新八年级数学暑假精品课(浙教版)山东省菏泽市单县2022-2023学年八年级下学期期中数学试题(已下线)专题02 勾股定理的逆定理(三大类型)(题型专练)-2023-2024学年八年级数学上册《知识解读·题型专练》(北师大版)福建省福州市长乐区鹤上中学2022-2023学年八年级下学期期末数学试题(已下线)专题06 勾股定理(九大题型)-【好题汇编】备战2023-2024学年八年级数学上学期期中真题分类汇编(苏科版)吉林省吉林市船营区第二十三中学2022-2023学年八年级下学期期末数学试题广东省广州市越秀区育才中学2022-2023学年八年级下学期期中数学试题江苏省无锡市新吴区梅里中学2023-2024学年八年级上学期期中数学试题吉林省吉林市第九中学2023-2024学年八年级下学期第一次月考试数学湖北省恩施市龙凤镇民族初级中学2023-2024学年八年级下学期月考数学试题
名校
6 . 在
中,
,点D在边
上.
绕着点A顺时针旋转
,得到线段
,连接
,判断线段
的数量关系,并证明;
(2)在图2中,在线段
取一点F,使得
,以
为斜边向
外做等腰直角三角形
,连接
.
①补全图形;
②判断线段
与
的数量关系,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172ac6c40662ca3b66ece57d32af7c7a.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/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb0cfe301eccae952e3f2726f841681.png)
(2)在图2中,在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e94399c4924cf2a862737a2825fe4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0186c53c0f8b7aca010db4681fe90c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
①补全图形;
②判断线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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2023-10-19更新
|
194次组卷
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5卷引用:2023年广西桂林市阳朔县中考数学二模试题
2023年广西桂林市阳朔县中考数学二模试题北京市首都师范大学附属中学2023-2024学年九年级上学期月考数学试题辽宁省铁岭市昌图县2023-2024学年九年级上学期期末数学试题辽宁省铁岭市昌图县毛家店镇第一中学2023-2024学年九年级上学期期末数学试题(已下线)八年级期末数学试卷01-2023-2024学年八年级数学下学期期末考点大串讲(北师大版)
名校
解题方法
7 . 如图,
中,
,D为
中点,点E在直线
上(点E不与点B,C重合),连接
,过点D作
交直线
于点F,连接
.
与
的数量关系:______.
(2)如图2,当点F不与点A重合时,请写出线段
,
,
之间的数量关系,并说明理由;
(3)若
,
,
,请直接写出线段AF的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c175c239742c7ba8fd67a6d5f99cb1b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(2)如图2,当点F不与点A重合时,请写出线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ad4c0ba3a6750537789844d0ec419d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/065f2c3527fcc9d84939c47ac8640643.png)
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2023-10-16更新
|
533次组卷
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8卷引用:广西壮族自治区钦州市第四中学2022-2023学年八年级下学期期中数学试题
名校
8 . 如图,在
中,
.
(1)用直尺和圆规作
的外接圆的圆心
,(要求保留作图痕迹);
(2)若
的垂直平分线交
于点
,连接
,
,
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb980da8e86b4cfd322616dc84fc6e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/16/39935e8b-2b7a-4804-ae23-67f8a55282ae.png?resizew=130)
(1)用直尺和圆规作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
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真题
名校
9 . 如图,
是菱形
的对角线.
的垂直平分线,分别与
,
交于点
,
(尺规作图,不写作法,保留作图痕迹);
(2)在(1)的条件下,连接
,若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(2)在(1)的条件下,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2319a01218514917e446dfc807a625ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/741ea7b92508b200082ad0e9fee7ee46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d59511c474942171fb685fc3f8dfd2d.png)
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2023-10-10更新
|
1107次组卷
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10卷引用:广西壮族自治区南宁市青秀区第二中学2023-2024学年八年级下学期期中数学试题
广西壮族自治区南宁市青秀区第二中学2023-2024学年八年级下学期期中数学试题2023年湖北省襄阳市中考数学真题广东省河源市连平县2023-2024学年九年级上学期期末数学试题(已下线)第5讲 视图、投影和几何作图福建省福州市鼓楼区福建省福州教育学院附属中学2023-2024学年九年级下学期开学考试数学试题(已下线)专题9.24 菱形(直通中考)(提升练)-2023-2024学年八年级数学下册基础知识专项突破讲与练(苏科版)(已下线)专题9.44 中心对称图形——平行四边形(直通中考)(培优练)-2023-2024学年八年级数学下册基础知识专项突破讲与练(苏科版)(已下线)专题18.21 菱形(直通中考)(提升练)-2023-2024学年八年级数学下册基础知识专项突破讲与练(人教版)(已下线)热点09 尺规作图(7大题型+满分技巧+限时分层检测)-2024年中考数学【热点·重点·难点】专练(全国通用)2024年江苏省淮安市淮安区中考数学二模试题
10 . 如图,在
中,
,
,线段
的垂直平分线
交
于D,连接
.
(1)求
的度数;
(2)若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d3c9ce32b721995f355eea411340e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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3卷引用:广西壮族自治区柳州市鹿寨县2022-2023学年八年级上学期期中数学试题
广西壮族自治区柳州市鹿寨县2022-2023学年八年级上学期期中数学试题广西南宁市邕宁区民族中学2023-2024学年八年级上学期数学期中试题(已下线)(期中期末真题汇编)第13章 轴对称 (分层精练)-【题型分类精粹】2023-2024学年八年级数学上学期期中期末复习讲练系列【考点闯关】(人教版)