名校
1 . 如图,
,
,
.有下列结论:
①把
沿直线
翻折180°,可得到
;
②把
沿线段
的垂直平分线翻折180°,可得到
;
③把
沿射线DC方向平移与
相等的长度,可得到
.
其中所有正确结论的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2472d67cff64232cb7d42177a890e15.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/29/b8be8c85-4d46-4c8b-b6c8-a305486a9927.png?resizew=120)
①把
![](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/80651f797ab9dccfd7163c605b091ad5.png)
②把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ac5396c5ea442e0364b50c1db3d2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80651f797ab9dccfd7163c605b091ad5.png)
③把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ac5396c5ea442e0364b50c1db3d2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
其中所有正确结论的序号是( )
A.①② | B.①③ | C.②③ | D.①②③ |
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2 . 如图,点
在
上,
,
,则根据______ ,就可以判定
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4009aa13093cc3865dcd51b371892160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d774977dd266bb77d9e9b7eb8acad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b84c9371e4a03c80783e0ec52f60530.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/f60283b1-eb4f-4867-8076-48eb459013f0.png?resizew=208)
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4卷引用:江苏省扬州市邗江区邗江区实验学校2023-2024学年八年级上学期10月月考数学试题
江苏省扬州市邗江区邗江区实验学校2023-2024学年八年级上学期10月月考数学试题江苏省南京市建邺区金陵中学河西分校2020-2021学年八年级上学期期中数学试题(已下线)4.3 探索三角形全等的条件(分层练习)-2022-2023学年七年级数学下册同步精品课堂(北师大版)第十三章 全等三角形 13.3 全等三角形的判定冀教版八年级上册课后作业
3 . 如图,已知
中,
,
平分
,请补充完整过程,说明
的理由.
![](https://img.xkw.com/dksih/QBM/2023/1/8/3148611903324160/3156142603821056/STEM/158072206a1141f78cbc8b36f99cac7e.png?resizew=128)
证明:∵
平分
,
∴
__________(角平分线的定义)
在
和
中,
,
∴
(__________)
![](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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/901d94b32038d99ef9e748f1fe2b8c55.png)
![](https://img.xkw.com/dksih/QBM/2023/1/8/3148611903324160/3156142603821056/STEM/158072206a1141f78cbc8b36f99cac7e.png?resizew=128)
证明:∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a2b104be37d7663966afb47fab83c7.png)
在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6445c632a3309e98eabbaaa5292e755f.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/901d94b32038d99ef9e748f1fe2b8c55.png)
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4 . 如图,
,
,要使
,添加条件正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/12/19/3134057936977920/3135700519370752/STEM/1dbabe6db601428b89ccfe4d81b7ae9d.png?resizew=221)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/421291381be28da4bd16560fd383b4a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52273305805769a438772342b53c289e.png)
![](https://img.xkw.com/dksih/QBM/2022/12/19/3134057936977920/3135700519370752/STEM/1dbabe6db601428b89ccfe4d81b7ae9d.png?resizew=221)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
5 . 如图,点
是
的中点,
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c33e90eb053f8a718d5f9a1d3ef834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c220eadc312101e2fb89dfe920f7b30d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a391c4d96cfb4e7c0f1df58a94be7218.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/8636caab-b861-4ad7-8082-440495a32d9b.png?resizew=138)
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7卷引用:2020年广东省广州市南阳学校九年级中考复习试题
2020年广东省广州市南阳学校九年级中考复习试题福建省龙岩市莲东中学2020-2021学年八年级上学期第一次月考数学试题2020年云南省中考数学3月模拟试题(已下线)期末检测(3)-2020-2021学年七年级数学上册十分钟同步课堂专练(沪科版)江苏省沭阳县怀文中学2019-2020学年九年级第8次形成性测试数学试题湖南省衡东县杨山实验中学2022-2023学年八年级上学期期中考试数学试题(已下线)2023年四川省宜宾市中考数学真题变式题19-22题
6 . 如图,
,则
等于( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/a3767bf3-1f36-49e5-bcb7-3c220d797969.png?resizew=150)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fc959fe86da3d35ef7f83cc0a4e74bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/a3767bf3-1f36-49e5-bcb7-3c220d797969.png?resizew=150)
A.6 | B.4 | C.3 | D.5 |
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7 . 如图,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb8f430fcffec55eda375a38605cd1b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0af8fee94d55226c6afa80a152e2ae6a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/8c893438-217a-4ce9-9de9-50c35ac0cf0d.png?resizew=158)
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名校
8 . 如图,已知
,E、F是AC上两点,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c9d02e4dd9238ad97b1ee4c4436913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ce1475f537b4ad21775bfaa16daa0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f8f7a3cf5a6acc41c4932eb8548e9e7.png)
![](https://img.xkw.com/dksih/QBM/2022/11/7/3104542201225216/3104709025087488/STEM/0c373de3c1644745b62aeb7863415627.png?resizew=193)
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9 . 已知:如图,
,
,
.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba46f9fceccff74b15e6dad269412cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a510a3eb906b3ef0760b0d1723d11ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da8fe8f5f8a3f17561d70652ad1172a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ca10806fc8c3c3efd6859f526b76900.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/5d97876a-7e54-4fba-ab77-b960e5e5c639.png?resizew=172)
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10 . 下列判断正确的是( )
A.有两边和其中一边的对角对应相等的两个三角形全等 |
B.有两边对应相等,且有一角为 30°的两个等腰三角形全等 |
C.有两角及其夹边对应相等的两个三角形全等 |
D.有两边和一角对应相等的两个三角形全等 |
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