1 . 如图,
和
都是等边三角形,连接AD,BD,BE,
.下列四个结论中:①
≌
;②
;③
;④
,正确的是______ (填写所有正确结论的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2689f0ce5ab3467d8214794d8acb2bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfd5b23305664d6b645e2e6e2d350bf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c5691c346ede9c7b168a5fa4ce3f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5114f84337c12fe132a216dbce31791a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2556d8a3c762f55138aa3afceedd72.png)
![](https://img.xkw.com/dksih/QBM/2022/1/12/2892979937714176/2894940515729408/STEM/16abdd0d-a8dd-4d30-8fc9-c16e01f7e0c9.png?resizew=254)
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2 . 如图,已知在正方形ABCD外取一点E,连接AE、BE、DE.过点A作AE的垂线交DE于点P,若AE=AP=1,PB=
.下列结论:①△APD≌△AEB;②点B到直线AE的距离为
;③EB⊥ED;④S△APD+S△APB=
.其中正确结论的序号是
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/12/5dd5b0f3-26d6-4a6a-9ffe-a243984358b9.png?resizew=167)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca1478188d24600b82bc12ae81d2b467.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/12/5dd5b0f3-26d6-4a6a-9ffe-a243984358b9.png?resizew=167)
A.①③④ | B.①②③ |
C.②③④ | D.①②④ |
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2019-06-18更新
|
249次组卷
|
5卷引用:2013届江苏省无锡市新区第一实验学校九年级下学期期中考试数学试卷
3 . 嘉淇发现有两个结论:在
与
中,①若
,
,
,则
;②若
,
,
,则
.对于上述的两个结论,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0d20bb2cfe853cf200f40dcf02fa2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0e3153282ec5c57c2084f8929fa4ce8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0717601b203191a8fbaa3de9c67072e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c6cd33c774d17d4d791ee2f6e40eda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e65f92b2ab9a6cb4ddacecc4271d8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0e3153282ec5c57c2084f8929fa4ce8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0717601b203191a8fbaa3de9c67072e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c6cd33c774d17d4d791ee2f6e40eda.png)
A.①,②都错误 | B.①,②都正确 | C.①正确,②错误 | D.①错误,②正确 |
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4 . 如图,在
与
中,有以下四个等式①
;②
;③
;④
,请以其中三个等式作条件,余下一个作结论,写出所有的正确判断 ___________________________ (用
形式表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e362d469f95fcbd8f45a02453f31eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a10d5be6772e320e924020fc1a251dea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3620030e8808da46df97330103827913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c48119b3932497634478f656c752ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/208e8b5dfd8da1f3945e8568a7ea5bf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1120e471627069e78a6733af07687684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04286a4eee831d5dcd017623608c6dd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/11/57a868d4-5f0c-4673-9d26-3923cb3f5314.png?resizew=180)
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2020-08-20更新
|
555次组卷
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5卷引用:上海市松江区九峰实验中学2018-2019学年七年级下学期期中数学试题
上海市松江区九峰实验中学2018-2019学年七年级下学期期中数学试题内蒙古北京八中乌兰察布分校2020—2021学年八年级上学期第一次月考数学试题(已下线)第07讲 全等三角形的判定-SAS-【暑假自学课】2022年新八年级数学暑假精品课(人教版)(已下线)专题12.2.2 三角形全等的判定2(SAS)-【帮课堂】2022-2023学年八年级数学上册同步精品讲义(人教版)(已下线)14.4全等三角形的判定(分层练习)-2022-2023学年七年级数学下册同步精品课堂(沪教版)
5 . 如图所示,在平面直角坐标系中,A点坐标为(-2,2).
![](https://img.xkw.com/dksih/QBM/2019/9/19/2294160475152384/2294581430468608/STEM/0004366d01bb4b30949049ad0b43f4a1.png?resizew=280)
⑴如图⑴,在△ABO为等腰直角三角形,求B点坐标.
⑵如图⑴,在⑴的条件下,分别以AB和OB为边作等边△ABC和等边△OBD,连结OC,求∠COB的度数.
⑶如图⑵,过点A作AM⊥y轴于点M,点E为x轴正半轴上一点,K为ME延长线上一点,以MK为直角边作等腰直角三角形MKJ,∠MKJ=90°,过点A作AN⊥x轴交MJ于点N,连结EN.则①
的值不变;②
的值不变,其中有且只有一个结论正确,请判断出正确的结论,并加以证明和求出其值.
![](https://img.xkw.com/dksih/QBM/2019/9/19/2294160475152384/2294581430468608/STEM/0004366d01bb4b30949049ad0b43f4a1.png?resizew=280)
⑴如图⑴,在△ABO为等腰直角三角形,求B点坐标.
⑵如图⑴,在⑴的条件下,分别以AB和OB为边作等边△ABC和等边△OBD,连结OC,求∠COB的度数.
⑶如图⑵,过点A作AM⊥y轴于点M,点E为x轴正半轴上一点,K为ME延长线上一点,以MK为直角边作等腰直角三角形MKJ,∠MKJ=90°,过点A作AN⊥x轴交MJ于点N,连结EN.则①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9fe86279b3c3a2efeebd9abff3585dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b371d7c4a799e030bc693145246650.png)
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