1 . 如图,在
中,
,
,连接
,作
,且
,则下列结论:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
平分
;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
;
;
若
,则
.正确的有(填序号)______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15416b74b2ecbcfa38cf34a9ffff730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbc45da8cafbb059c2db4759638b0e7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995c569ac2b958ec2531e0620084ffec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e6fdc2a303614fdf8cdc511344b5624.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5feea9e7e583db0356e2728fe9825e09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8b8edd94bc4d5d517ec77e56800e41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d198bfbd7370d0c4ceb1e6e9750e726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a3e2a901b5a3011dd9161d07db50ae2.png)
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2 . 在
中,
,点D在
上,
于点E,且
,连接
.若
,则
的度数为______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffd657e48b15b9b54a55817e2c26b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/518586d91b63569fc317b323835a0c2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8a896e05730e8dd3bee64a4911c33dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685516a27697104e83b311d76efa17aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
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3 . 如图,
是函数
上两点,
为一动点,作
轴,
轴,下列说法:①
;②
;③若
,则
平分
;④若
,则
,正确的有_______ (填序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/498bcfd1aac03057dcd0adef2dd113a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da4740b0a6fbc693f0e8a2fe4e7b86c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e66b6663834e5962b27bf7ed5f4ed398.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b7bb6143ec9c246f676726872e36a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f725d18a75c9a3c0b68d40ed54ad9d29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fca3734de79f7f50b552ef62b29dc7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a14337aa964dab81b47c8fc07c65d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80d846ca1235ccda61a188ee2483f13f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/9/30459dd4-a014-4c85-ac49-596900b6f948.jpg?resizew=160)
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4 . 如图,
是
的外角,
,
和
的平分线相交于点E,连接
,则
的度数是__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb8eca20ce2c918ea4034ea15210c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e259d2878bb642d5e5759562198a2c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb8eca20ce2c918ea4034ea15210c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35803969509655f72b4118503ae1c966.png)
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5 . 如图,将刻度尺、含
角的直角三角板和量角器如图摆放(无重叠部分),若三角板
角的顶点在刻度尺上的读数是
,量角器与刻度尺接触点在刻度尺上的读数是
,则该量角器的直径长为________
.(结果保留根号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/356eafb7162b7d324708d70c54fbc3b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb7aa9be759dea509cee14586c92088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9179bee09452bbd0e5080501bb0ee9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/8/b4995460-f62e-484a-8df1-fa484ae1fd0a.png?resizew=287)
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2024-01-25更新
|
124次组卷
|
2卷引用:江苏省扬州市高邮市城北中学2023-2024学年九年级上学期期中数学试题
6 . 如图,
、
为
的切线,B、C为切点,连接
并延长到D,使
,连接
.若
,则
的度数为______ .
![](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/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/046aa9bbeea0009491581f881e429bd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8edd00fc6f858bc44cb83543e3bbe70b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/437a739a-4941-435c-81f2-7c3f7e57ce98.png?resizew=129)
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解题方法
7 . 如图,
,
均是等边三角形,点A,C,B在同一条直线上,且
,
分别与
,
交于点M,N,连结
.则下列结论:(1)
;(2)
为等边三角形;(3)
平分
;(4)
;(5)
平分
.其中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/644f63756fe9251e65cc14e1ce9723d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c941cb13f64020851fd09e0514f2502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a08312e180b01d2cc9c1a22a871b1180.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12225a1a1eda07908309f8100cc34726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8fb4b5afd9999b210f1bab1a0854d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc93e193fad261689949a52819753f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1384d0a02d097ac7aa8a19e8da6f9767.png)
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8 . 如图,O是
内一点,且O到
三边的距离相等,即
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e515787ebe97ed2662237d9ca51ea1.png)
__________
![](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/105f93d2f922d1603970b8fac8b6f4a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9693da3141d4af5e8deb0fd17dd5aeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e515787ebe97ed2662237d9ca51ea1.png)
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2023-11-05更新
|
141次组卷
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26卷引用:【万唯原创】2017年河北省中考数学-面对面-练习册第四章1+2
(已下线)【万唯原创】2017年河北省中考数学-面对面-练习册第四章1+22015-2016学年河北省石家庄市栾城县八年级上学期期末数学试卷天津市红桥区 铃铛阁中学 2017-2018学年 八年级数学上册 角平分线性质与判定 填空题练习北师大版数学八年级下册 1.4.2 三角形的内角平分线 同步练习北师大版八年级下册 1.4 角平分线(2)【校级联考】广西桂林市灌阳县2018-2019学年八年级下学期期中考试数学试题广东省高州教育联盟基地2019 -2020学年八年级下学期期中联考数学试题A广东省茂名市高州市教育联盟2019-2020学年八年级下学期期中数学试题内蒙古巴彦淖尔市临河区第二中学2020-2021学年八年级上学期第一次月考数学试题河南省商丘市睢县2020-2021学年八年级上学期期中数学试题广东省汕头市金平区汕头市聿怀初级中学2020-2021学年八年级上学期期中数学试题辽宁省辽阳市宏伟区2020-2021学年八年级下学期期中质量监测数学试题广东省茂名市2019-2020学年八年级下学期期中数学试题(已下线)专题12.44 《全等三角形》中考常考考点专题(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)(已下线)专题1.67 《三角形的初步知识》(二)中考常考考点专题(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(浙教版)广东省佛山市南海区映月中学2021-2022学年八年级下学期第一次调研数学试卷河南省信阳市罗山县2022-2023学年八年级上学期期中数学试题广东省汕头市金平区金湖中学2022-2023学年八年级下学期第一次月考数学试卷山东省枣庄市滕州市大坞镇大坞中学2022-2023学年八年级下学期3月月考数学试题湖南省娄底市双峰县2022-2023学年八年级下学期7月期末数学试题(已下线)第03讲 角平分线的性质-【帮课堂】2023-2024学年八年级数学上册同步学与练(人教版)(已下线)12.2 角的平分线的性质(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【考点闯关】(人教版)广西壮族自治区南宁市翠竹实验学校2023-2024学年八年级上学期10月月考数学试题(已下线)八年级数学期末模拟卷(重庆专用,人教版八上全册)-学易金卷:2023-2024学年初中上学期期末模拟考试广东省惠州市博罗县2023-2024学年八年级上学期第一次月考数学试题广西南宁市青秀区翠竹实验学校2023-2024学年八年级上学期10月月考数学试题
名校
9 . 如图,已知
于点
于点
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5b31f3336a22434b86e707d1030ad30.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90bf5edcb7053792ee56a9f213ec9e12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdbfd1640b8101dfb1d318b530146636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7531a267ac1064d4e9b5b361a79137.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5b31f3336a22434b86e707d1030ad30.png)
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2023-09-08更新
|
291次组卷
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22卷引用:【万唯原创】2021年黑马卷北师大版-特训-点对点特训4
(已下线)【万唯原创】2021年黑马卷北师大版-特训-点对点特训4人教版八年级上册 第十二章 12.3 角的平分线的性质 课时练【校级联考】吉林省四平市伊通县2017-2018学年八年级上期期末考试数学试题(已下线)2018年12月25日 《每日一题》人教版八上(期末复习)-角的平分线的性质【区级联考】陕西省宝鸡市渭滨区2017-2018学年八年级上期期末考试数学试卷【校级联考】河南省商丘市柘城县2018-2019学年八年级上学期期末考试数学试题黑龙江省伊春市嘉荫二中2018-2019学年八年级下学期开学考试数学试题山东省泰安市东平县2018-2019学年七年级第二学期期末质量检测数学试题(已下线)2019年9月27日《每日一题》角的平分线的性质(2)北京市海淀区理工大学附中2019-2020学年八年级上学期期中数学试题(已下线)2019年12月20日 《每日一题》角的平分线的性质重庆市梁平区2019-2020学年八年级上学期期末数学试题人教版2020-2021学年数学八年级上学期12.3.角的平分线的性福建省漳州市南靖县城关中学2020-2021学年八年级上学期第二次质检数学B试题山东省德州市齐河县胡官屯镇中学2022-2023学年八年级上学期第一次月考数学试题黑龙江省抚远市2022-2023学年八年级上学期期末考试数学试题 湖北省黄冈市浠水县方铺中学2022-2023学年八年级上学期期中数学试题黑龙江省宝清县部分地区2022-2023年八年级上学期开学考试数学试题广西南宁市三美学校外卷2023-2024学年八年级上学期月考数学试题广西壮族自治区南宁市江南区高新初级中学2023-2024学年八年级上学期9月月考数学试题第1章 4 课时1 角平分线的性质与判定创优作业(4)三角形的证明-【金牌题库】2023八年级数学暑假作业(北师大版)
10 . 如图,在
中,
,
,
,D是
边上一点,线段
绕点D顺时针旋转
得到
,连接
,若F是
的中点.
(1)
与
的位置关系是______ ;
(2)当点F在
上时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c978d92edf0c4c1ef8620c17df75d35e.png)
______ ;
(3)
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9142db4dd2ef151bf3d4a63afb61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/17/3efd0a1e-1970-42bf-87e8-c6f0bce91ace.png?resizew=212)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(2)当点F在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c978d92edf0c4c1ef8620c17df75d35e.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
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