名校
1 . 已知
是等腰直角三角形,
,点D是平面内任意一点,
绕着点C逆时针旋转
到
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/4de33d8f-e118-407f-90f8-6160618883b0.png?resizew=360)
(1)如图①,若D为
内一点,求证:
;
(2)如图②,若D为
边上一点,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/4de33d8f-e118-407f-90f8-6160618883b0.png?resizew=360)
(1)如图①,若D为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c503e29373e8d87134bdb46bd3912910.png)
(2)如图②,若D为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25fce5213a60bbc69a8e6979d70f9e15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
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2022-11-06更新
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319次组卷
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4卷引用:第23章 旋转(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(人教版)
(已下线)第23章 旋转(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(人教版)江苏省无锡市江南中学2022-2023学年八年级上学期期中数学试题(已下线)第9章 中心对称图形-平行四边形(重点)(练习)-2022-2023学年八年级数学下册同步精品课堂(苏科版)山东省烟台市栖霞市2022-2023学年八年级上学期期末数学试题
2 . 如图,
中
,
,
中,
,
,直线
与直线
交于点F.现将
绕点C旋转一周,在旋转过程中,
______
,线段
长度的最大值是______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7a522d816908f453cbcb721eb7aea91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eba7e2cb2e2390673b83bde332973d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4cc8a761ba260b010a138ac38dd8746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0acc93490a6a784eb62201d93dd93d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/127eef97aeb02eb6610a149fdb9bf9ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/dbf08f93-aefc-4ed4-8998-8527e490ee10.png?resizew=162)
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3卷引用:(期中期末真题汇编)第24章 圆 (分层精练)-【题型分类精粹】2023-2024学年九年级数学上学期期中期末复习讲练系列【考点闯关】(人教版)
(已下线)(期中期末真题汇编)第24章 圆 (分层精练)-【题型分类精粹】2023-2024学年九年级数学上学期期中期末复习讲练系列【考点闯关】(人教版)江苏省无锡市惠山区2022-2023学年九年级上学期期中数学试题湖北省黄石市还地桥教联体2022-2023学年九年级下学期开学考试数学试题
名校
3 . 如图,已知AB是⊙O的直径,弦
于H,若
,则图中阴影部分的面积为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aaae6f0ad404fd1a11b09d99fcac8ae.png)
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10卷引用:专题08圆的对称性(4个知识点6种题型1个易错考点2种中考考法)-【帮课堂】2023-2024学年九年级数学上册同步学与练(苏科版)
(已下线)专题08圆的对称性(4个知识点6种题型1个易错考点2种中考考法)-【帮课堂】2023-2024学年九年级数学上册同步学与练(苏科版)(已下线)专题03 圆的有关性质(经典基础题6种题型+优选提升题)-【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(苏科版)(已下线)第03讲 垂径定理(选学)(7类题型)-【帮课堂】2023-2024学年九年级数学上册同步学与练(浙教版)江苏省无锡市惠山区2022-2023学年九年级上学期期中数学试题江西省南昌市2022-2023学年九年级上学期期末数学试题江西省新余市2022-2023学年九年级上学期期末统一考试数学试卷 (已下线)第07讲 圆与对称性(5种题型)-【暑假自学课】2023年新九年级数学暑假精品课(苏科版)(已下线)第12讲 垂径定理-【暑假自学课】2023年新九年级数学暑假精品课(浙教版)江苏省无锡市宜兴市丁蜀学区2023-2024学年九年级上学期期中数学试题江西省新余市分宜中学2023-2024学年九年级下学期月考数学试题
4 . 如图,在矩形
中,P是
上的动点,连接
,若
上存在三个不同位置的点P,使
与
相似,设
,则d的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d9ea82fbf17dc33c55abb9d460b37be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96645a3530e72d5d733d2c72147d340.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b70cab30debebfdd8876322a72e1582.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/6/3920aed9-38d3-445c-8802-8a32971e672c.png?resizew=195)
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4卷引用:第13讲探索三角形相似的条件(2大考点)-2022-2023学年九年级数学考试满分全攻略(苏科版)
(已下线)第13讲探索三角形相似的条件(2大考点)-2022-2023学年九年级数学考试满分全攻略(苏科版)江苏省苏州市吴江区吴江实验初级中学2022-2023学年九年级上学期期中数学试卷江苏省苏州市吴中区、吴江、相城区2022-2023学年九年级上学期期中数学试题(已下线)第6章 图形的相似(B卷·能力提升练)-【单元测试】2022-2023学年九年级数学下册分层训练AB卷(苏科版)
5 . 如图,在
中,
是边
上的一个动点(不与点B,C重合),连接
,将线段
绕点A逆时针旋转
得到
,连接
交
于点P,连接CN.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/c6d7406b-52dc-4786-b831-384b71b1bd8e.png?resizew=176)
(1)求证:
;
(2)问线段
的数量关系,并加以证明;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddc9d5d6a01213359b5e319ff6f63281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06128875d11aed8bf3b60adeed2dc059.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/c6d7406b-52dc-4786-b831-384b71b1bd8e.png?resizew=176)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2e9fc74e001cd85816fc1aed837de0c.png)
(2)问线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d135df98aef017f2ae8b8182454d9a8.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc48c4b4c953d02eaa1dde683cee9687.png)
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真题
6 . 已知:如图,点
、
、
、
在一条直线上,且
,
,
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/967578d2c4086aef3fda57ed4cdae5c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a510a3eb906b3ef0760b0d1723d11ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e0d7cb6c478519153baae842aa8206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79de59390a7059cfdea1f42ce1ffac70.png)
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2022-11-03更新
|
1291次组卷
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16卷引用:第三节 全等三角形03综合测
(已下线)第三节 全等三角形03综合测(已下线)黄金卷01-【赢在中考·黄金8卷】备战2023年中考数学全真模拟卷(江苏南京专用)(已下线)专题22全等三角形(优选真题60道)-学易金卷:三年(2021-2023)中考数学真题分项汇编【全国通用】2022年江苏省淮安市中考数学真题(已下线)专题11.19 三角形(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12.6 全等三角形的判定(SSS、SAS)(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02探索三角形全等的条件(8个知识点9种题型1个易错考点3种中考考法)-【帮课堂】2023-2024学年八年级数学上册同步学与练(苏科版)(已下线)专题1.6 探索三角形全等的条件(SSS,SAS)(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)(已下线)12.1+全等三角形(题型精讲精练)-【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3【考点闯关】(人教版)(已下线)第1章 全等三角形全章复习攻略(2个概念1个性质1个判定2个作图2个解题技巧1个应用3种思想)与检测卷2023年云南省大理州大理市中考数学模拟预测题(已下线)综合复习与测试(1)(第十一十二章)(基础篇)(专项练习)-2022-2023学年八年级数学上册基础知识专项讲练(人教版)江苏省淮安市清江浦区2022-2023学年八年级上学期期末数学试题广东省惠州市惠城区南山学校2022-2023学年八年级下学期开学考试数学试题广东省东莞市石碣新民学校2023-2024学年八年级上学期期末模拟数学试题江苏省无锡市滨湖区2022-2023学年八年级上学期期中数学试题
7 . 如图,
和
中,
,
交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/15/e0873c98-09f5-4e96-b510-b7fa498b12cd.png?resizew=310)
(1)如图1,求证:
与
的数量与位置关系并说明理由;
(2)连接
,求证:
平分
;
(3)如图2,
时,直接写出
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4807ca16360c0cca436e59d4be98f626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c6e23e1c5a086be773a639cbaabcee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d0b0b7d07ac1aebab6b6f1e8c6acdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/15/e0873c98-09f5-4e96-b510-b7fa498b12cd.png?resizew=310)
(1)如图1,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cfef623a9534b5708df5f95f1760a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cfef623a9534b5708df5f95f1760a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d7890f747854b8fcf25dcff1991fb84.png)
(3)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8fb8a2b0e080dcee63288441d62d127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5071953255f6434eaefeab7176372564.png)
您最近一年使用:0次
名校
8 . 如图,在
中,直径
,延长
至
,使
,点
在
上运动,连接
,将
绕点
顺时针旋转
得到
,连接
,则线段
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.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/51dc424cdea009615f880f54bd2f09f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/13/5ed5f1b5-43ff-4684-867c-219b06c2a2e9.png?resizew=179)
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11卷引用:专题09 圆的相关计算问题-学易金卷:2023年中考数学一模试题分项汇编(浙江专用)
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22-23九年级上·全国·单元测试
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9 . 如图,已知
和
中,
,
,
,
,
;
的理由;
(2)
可以经过图形的变换得到
,请你描述这个变换;
(3)求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79de59390a7059cfdea1f42ce1ffac70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a277db452e76240ec83ec6a2864bdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da8fe8f5f8a3f17561d70652ad1172a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abacf56383fdb6520e04993bb381d33b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b9c7fa8f26452d8650ee4b787d238a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1bcc467c0e833f7bb622cdf52a5f25.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f9c3b578fc0598d5ec6c79404c6cc2.png)
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22-23九年级上·全国·单元测试
10 . 如图,
中,
,底边上的高
,E是
中点.P是
上一点,连接
,将
绕点E逆时针旋转
交
的延长线于点F.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/91104c19-2676-413b-ab00-a76619b7536c.png?resizew=221)
(1)若
,则
°;
(2)若P为
的中点,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350c737650ed72d832be9527b931f392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/91104c19-2676-413b-ab00-a76619b7536c.png?resizew=221)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c427d63a92a7a34b692220bbcfd3172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72eaabe37ba4f494de1d0a0769dc07a8.png)
(2)若P为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ddf4060d47d069e2987ab8fc73383fb.png)
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