名校
1 . 如图,
中,点E在边
上,
,将线段
绕A点旋转到
的位置,使得
,连接
与
交于点G.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/5/78e90e8a-e57b-4628-9e04-4aadb27225fc.png?resizew=181)
(1)求证:
;
(2)若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5fc6ead6416492c231c320a5486f86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c2b3d993a79210952ef190542700111.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8f067fb08733cfe4902d2a08bc2f818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/5/78e90e8a-e57b-4628-9e04-4aadb27225fc.png?resizew=181)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dab0c0c0f988903f228a6510208420.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55587fb6f96c7be0a652c31af5eb3c1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/600f68bbb24b2f34b6f5ebca90939535.png)
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2023-03-13更新
|
259次组卷
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9卷引用:广西壮族自治区河池市宜州区教育局教学研究室2022-2023学年九年级上学期期中数学试题
广西壮族自治区河池市宜州区教育局教学研究室2022-2023学年九年级上学期期中数学试题2022年湖北省黄石市部分学校九年级5月模拟考试数学试题(已下线)XDRzkgssxtzxl930河南省南阳市卧龙区第十三中学校2022-2023学年八年级上学期期末数学试题河南省新乡市2022-2023学年八年级上学期期末数学试题(已下线)第三章 图形的平移与旋转 单元检测卷(B卷)-2022-2023学年八年级数学下册《同步考点解读·专题训练》(北师大版)(已下线)3.2 图形的旋转-2022-2023学年八年级数学下册《考点·题型·技巧》精讲与精练高分突破系列(北师大版)山东省济宁市任城区第十五中学2023-2024学年八年级上学期12月月考数学试题湖北省恩施土家族苗族自治州建始县2023-2024学年八年级上学期期中数学试题
2 . 如图,在正方形
中,对角线
,
交于点O,点E,F分别在
,
上,且
,
交
于点G,连接
.下列结论错误的是( )
![](https://img.xkw.com/dksih/QBM/2023/2/26/3182905223667712/3192419933863936/STEM/22c1733143744327bcad2dc233f2d06a.png?resizew=119)
![](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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d84e50addf610664f444ec7832738c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e57a13c665af88f326c9890072bf73.png)
![](https://img.xkw.com/dksih/QBM/2023/2/26/3182905223667712/3192419933863936/STEM/22c1733143744327bcad2dc233f2d06a.png?resizew=119)
A.![]() | B.![]() |
C.![]() | D.四边形![]() |
您最近一年使用:0次
名校
3 . 【问题原型】如图①,
与
均为等腰直角三角形,
,连接AD、BE.求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8657c9063fed8b1d90c37f9fea4e92.png)
【问题延伸】如图②,
,
,连接
.试问
与
的大小有怎样的关系?请说明理由.
【问题应用】如图③,
,
,
,
.点E在边
上,且
,连接
,则线段
的长为______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90b40c2b0ab8e1cfe5112d428b4b829f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0acc93490a6a784eb62201d93dd93d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc75953bf5dcfa4af308c34bf9952d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8657c9063fed8b1d90c37f9fea4e92.png)
【问题延伸】如图②,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/693f40905e74754762bda01820e843af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc75953bf5dcfa4af308c34bf9952d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15204b24dd62067316fee9abab2bf73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/721c75fcd58d3d54260aad0f82e09e37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79cd9d0d73549e2944578f3513631ce5.png)
【问题应用】如图③,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/693f40905e74754762bda01820e843af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc75953bf5dcfa4af308c34bf9952d3.png)
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc90c2d45477e166b02359525f40aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
2023-03-09更新
|
253次组卷
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3卷引用:2024年广西南宁市广西大学附属中学中考6月数学收网考试题
4 . 如图所示,
,点
是
轴上一个动点,将线段
绕
点顺时针旋转
得到线段
,连接
.则线段
的最小值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821cca1089277231d9504ddb343a8633.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/18/5204eafb-fc93-4742-b5fc-c4c55c79bb6c.png?resizew=132)
您最近一年使用:0次
2023-02-16更新
|
413次组卷
|
3卷引用:广西壮族自治区北海市合浦县2022-2023学年九年级下学期期中数学试题
广西壮族自治区北海市合浦县2022-2023学年九年级下学期期中数学试题湖北省武汉市江夏区,蔡甸区,黄陂区三区部分学校2022-2023学年八年级上学期期末考试数学试卷(2月联考)(已下线)第三章《图形的平移与旋转》同步单元基础与培优高分必刷卷-2022-2023学年八年级数学下册《考点·题型·技巧》精讲与精练高分突破系列(北师大版)
名校
5 . 问题探究:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/25b32066-e6ce-4e07-83a4-e52a6cd241a0.png?resizew=498)
(1)如图(1),在
中,
,
,点
为边
上的一动点,以
为边在右侧作
,且
,
,连
.若
,求
的长;
(2)如图(2),边长为4的等边
,点
为边
上的一动点,以
为边在右侧作
,连接
,则
__________;
__________;
的周长最小值是__________.
问题解决:
(3)如图3,四边形
中,
,
,
,
,点
分别为边
,
上的动点,且
,是否存在点
,使得四边形
面积最大且
的周长最小?若存在,求出四边形
面积最大值和
的周长最小值;若不存在,请说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/25b32066-e6ce-4e07-83a4-e52a6cd241a0.png?resizew=498)
(1)如图(1),在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e3b8b36fc31644f5e121300645befc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d212c1709b8e72a055cf1b5381ef64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e0598bba8f5b412e0fd2bb8f6508c8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(2)如图(2),边长为4的等边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7673a4f6df82a5189866724b8d02dfc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d2ada3138c7b2d21102d163911440f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88f13418ff013bbdfd694f7fdb1a641.png)
问题解决:
(3)如图3,四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853e81b1b9606ad25244ff82c8292df6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f44755c5fee4b90266eac73ad47a128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dcd51bada23d3b807256c141f266a07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f44755c5fee4b90266eac73ad47a128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408e2d26c0c8a6594c4baba496a4651d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/999c42a021bdc576f097246b9e64d986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408e2d26c0c8a6594c4baba496a4651d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/999c42a021bdc576f097246b9e64d986.png)
您最近一年使用:0次
2023-02-12更新
|
322次组卷
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2卷引用:2023年广西柳州市柳江区中考数学二模考试试题
6 . 在边长为
的正方形
中,
、
分别是
、
边上的动点,并且满足
连接
、
交于
,连接
,
是
的中点,连接
,则
的最小值是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b91d650c2fc1a741fabdb333b09aeb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff56ea00ca90825f3d95809de24f639.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/587d068f-fc2f-4df8-b4bc-c29a8f760e62.png?resizew=128)
您最近一年使用:0次
7 . 【探索发现】如图①,四边形
是正方形,
分别在边
上,且
,我们把这种模型称为“半角模型”,在解决“半角模型”问题时,旋转是一种常用的方法.如图①,将
绕点
顺时针旋转
,点
与点
重合,得到
,连接![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4012a67add2d3e54c50b2fd7eadbac34.png)
之间的数量关系,并写出证明过程.
(2)如图②,点
分别在正方形
的边
的延长线上,
,连接
,请写出
之间的数量关系,并写出证明过程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c2c469e50b231ff7667fbc96c19ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3413060c450f81e8eabeac29bcf8340a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eec760fb5b76f5d77d7654d68c73263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e2bd387ad688461e522af5acf2108d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7a0387fc1258f31e44a10068c0ccfd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa485cf3776f36aaf4abaadaf30fb85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4012a67add2d3e54c50b2fd7eadbac34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88d47d6c18b3f1360766fdbc5aa09b8.png)
(2)如图②,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50e85daaf3da68c34df2e93ac7f01381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9193c00d2158a26dc03944fd15cf73a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2245b4e7655570d1d35c0161efa7811c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa29fe6cd9eb51c184f6299d437375cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b5acb047bbfe4f2dc025f20489ef27.png)
您最近一年使用:0次
2023-01-28更新
|
423次组卷
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5卷引用:广西壮族自治区南宁市隆安县2022-2023学年九年级上学期期中数学试题
广西壮族自治区南宁市隆安县2022-2023学年九年级上学期期中数学试题广西壮族自治区南宁市西乡塘区第三十一中学2023-2024学年九年级上学期期中数学试题(已下线)黄金卷8-【赢在中考·黄金8卷】备战2023年中考数学全真模拟卷(北京专用)(已下线)专题03 四边形中常见的几种模型(六大题型)-【好题汇编】备战2023-2024学年九年级数学上学期期中真题分类汇编(北师大版)(已下线)专题4.20 三角形全等几何模型(半角模型)(培优练)-2023-2024学年七年级数学下册基础知识专项突破讲与练(北师大版)
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8 . 如图,正方形
的边长为6,点
是正方形外一动点,且点
在
的右侧,
,
为
的中点,当点
运动时,线段
的最大值为 __ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd32d2db65c6c30f0981cf6b21ab94bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/31/a6a23e7d-65ca-4a70-bf32-1cf4702743fe.png?resizew=151)
您最近一年使用:0次
2023-01-27更新
|
213次组卷
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2卷引用:广西壮族自治区南宁市广西大学附属中学2023-2024学年九年级上学期11月月考数学试题
9 . 如图,
为等边三角形,
绕点A逆时针旋转得
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/f1744f74-16dc-40c1-9d7d-dcab31e1ccaa.png?resizew=148)
(1)求证:
;
(2)求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4decc19320fa641ec3c80f68a8986182.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/f1744f74-16dc-40c1-9d7d-dcab31e1ccaa.png?resizew=148)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4cbc7151abaa337a47ad41a5b63958.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc66a21de39ba2f829487820429724f.png)
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3卷引用:广西壮族自治区南宁市第十三中学2022-2023学年九年级上学期第三次月考数学试题
广西壮族自治区南宁市第十三中学2022-2023学年九年级上学期第三次月考数学试题甘肃省定西市2023-2024学年九年级上学期12月月考数学试题(已下线)专题3.17 图形的平移与旋转(全章复习与巩固)(知识讲解)-2022-2023学年八年级数学下册基础知识专项讲练(北师大版)
10 . 已知:如图,点
、
在线段
上,且
.作
且
,连结
、
.
![](https://img.xkw.com/dksih/QBM/2023/1/7/3147928679006208/3149073008140288/STEM/f4ca33c7f97e488bae74b488e40ab68e.png?resizew=172)
(1)求证:
.
(2)若
,
,求
的度数.
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ce1475f537b4ad21775bfaa16daa0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daee8baa62b5b8d5db41eab0d360ee51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03687d97d61b4a7cecbb73f2a6604212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/2023/1/7/3147928679006208/3149073008140288/STEM/f4ca33c7f97e488bae74b488e40ab68e.png?resizew=172)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c220eadc312101e2fb89dfe920f7b30d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14814fdc3ca8034bbd97cb76bed9c9d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb175bcfdd36d1eb14d89e264819b12c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
您最近一年使用:0次
2023-01-09更新
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103次组卷
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2卷引用:2023年广西贺州市昭平县樟木林中学中考一模数学试题