1 . 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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2022八年级·全国·专题练习
2 . 如图,在△
和△
中,
,请你再补充一个条件,能直接运用“SAS”判定△
≌△
,则这个条件是( )
![](https://img.xkw.com/dksih/QBM/2022/9/25/3073973418401792/3097640076255232/STEM/9d064fe658184cdfaa83cd8a97d85aa8.png?resizew=145)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0701272f55ef9f66a6aedf5ca8c9236d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
![](https://img.xkw.com/dksih/QBM/2022/9/25/3073973418401792/3097640076255232/STEM/9d064fe658184cdfaa83cd8a97d85aa8.png?resizew=145)
A.∠ACB=∠DEF | B.BE=CF | C.AC=DF | D.∠A=∠F |
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2022-10-28更新
|
264次组卷
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3卷引用:第12章 全等三角形(基础、常考、易错、压轴)分类专项训练-2022-2023学年八年级数学考试满分全攻略(人教版)
(已下线)第12章 全等三角形(基础、常考、易错、压轴)分类专项训练-2022-2023学年八年级数学考试满分全攻略(人教版)湖南省郴州市永兴县永一中学2022-2023学年八年级上学期期中考试数学试题江苏省南京市江北新区浦口外国语学校2022-2023学年八年级上学期10月月考数学试题
22-23八年级上·全国·阶段练习
3 . 如图,A,B分别是线段
上的点,
,
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9ba6d3a4b110f65a8d203aeadd03ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33cbad6599796efc1c177ae9349feda9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fca3734de79f7f50b552ef62b29dc7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afd636d15ee534982e0b2a22c14f81cc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/6bb14b5a-2c71-4d45-be76-700fecfbef2b.png?resizew=112)
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名校
4 . 如图,已知
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38aa46b02f08fca3728f1158ea0047fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de966c316db1013defc56372fcf814e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b50834e39c4e028e0fc303b94d571923.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/e331c386-67d4-40e2-9478-19c0e6e8f8f0.png?resizew=181)
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2022-10-26更新
|
402次组卷
|
2卷引用:广东省珠海市香洲区第九中学 2022-2023学年八年级上学期国庆节后数学质量检测卷
5 . 如图,已知AD=BC,∠1=∠2,那么△ABC≌_____ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/1/516165bd-7ec5-4f93-a5a1-eeef18429fb4.png?resizew=208)
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6 . 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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7 . 为测量池塘两端
,
的距离,小王设计了如下方案:如图,先在平地上取一个可以直接到达
,
的点
,再连接
,
,并分别延长至点
,
,使得
,
,由
得到
,所以测出
的长即为
,
的距离,那么判定
的理由是( )
![](https://img.xkw.com/dksih/QBM/2022/8/24/3051430584991744/3051482531364864/STEM/f81d07b7432e4bbc8ee3f13d48905b6f.png?resizew=125)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c331cd00b043c8e218ea6c4122cf5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07372f502e86361568199fd15986cc5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68978b7d8f9487462ff0114fdb5f6969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b6eed25f146a63401813b99fb1500b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68978b7d8f9487462ff0114fdb5f6969.png)
![](https://img.xkw.com/dksih/QBM/2022/8/24/3051430584991744/3051482531364864/STEM/f81d07b7432e4bbc8ee3f13d48905b6f.png?resizew=125)
A.边边边 | B.边角边 | C.角边角 | D.角角边 |
您最近一年使用:0次
名校
8 . 如图,
,
,
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd81adb13f5a7550b0f94f770900a613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5adaae99b4ac308549134169e69247a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c244edbf77fbb8e9c017515e370c5c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a510a3eb906b3ef0760b0d1723d11ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ca10806fc8c3c3efd6859f526b76900.png)
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2023-01-05更新
|
504次组卷
|
2卷引用:重庆市南岸区第十一中学校2020-2021学年七年级下学期期中数学试题
9 . 如图,若
,
,则
的理由是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/24/8fc747dd-8ab9-4914-8ed4-ed0453a43b3e.png?resizew=136)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ba77f66ecad8eb4a7a63f169f28a3b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/901d94b32038d99ef9e748f1fe2b8c55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/24/8fc747dd-8ab9-4914-8ed4-ed0453a43b3e.png?resizew=136)
A.SAS | B.AAS | C.ASA | D.SSS |
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2022-08-01更新
|
259次组卷
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2卷引用:山东省济南市莱芜区2021-2022学年七年级下学期期末数学试题
名校
10 . 如图,把两根钢条AB,CD的中点连在一起,可以做成一个测量工件内槽宽的工具(卡钳)只要量得AC的长度,就可知工件的内径BD是否符合标准,这是利用的什么数学原理呢?( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/2/08aa0d72-bbf0-4eb6-a71e-a4a363bce006.png?resizew=228)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/2/08aa0d72-bbf0-4eb6-a71e-a4a363bce006.png?resizew=228)
A.SSS | B.SAS | C.ASA | D.AAS |
您最近一年使用:0次
2022-08-01更新
|
376次组卷
|
3卷引用:山东省济南市历下区2021-2022学年七年级下学期期末数学试题