1 . 如图,
,点
在
上,连接
,下列结论:①
平分
;②
;③
,其中,所有正确结论的序号是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/28/fb949fb4-886f-4748-92af-c6340be2efef.png?resizew=252)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/471be8c54214f0b750eb2ba59aa23d5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e470b9b1ab6b8db7d19dc1e48ad6f09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cb09222e9e65934334010e236187d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c923c4f2879e24da9148c9b8330e6cb3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/28/fb949fb4-886f-4748-92af-c6340be2efef.png?resizew=252)
A.①② | B.②③ | C.①③ | D.①②③ |
您最近一年使用:0次
2 . 如图,在
中,
,将
绕点
顺时针旋转得到
点
的对应点为
,点
的对应点
落在线段
上,连接BE.下列结论:①
平分
;②
;③
;④
.其中所有正确结论的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cda6381d959e6f99f3100d7137c45c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23dc2d2dd56fcc67698c45a6e0e48f80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b61fe2791ff441916982c0d46eaa3b24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7754def2a1547a806957f3bc06c2097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5adc18ca424552b35ab939e9d57943e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/21/54dc2e53-616c-4fd1-b144-e656d14a5118.png?resizew=148)
您最近一年使用:0次
2022-12-20更新
|
196次组卷
|
4卷引用:北京景山学校大兴实验学校2022-2023年八年级上学期数学期末试卷
北京景山学校大兴实验学校2022-2023年八年级上学期数学期末试卷福建省福州市长乐区鹤上中学2022-2023学年九年级上学期期中数学试题(已下线)专题23.1 图形的旋转【十大题型】-2023-2024学年九年级数学上册举一反三系列(人教版)(已下线)专题3.2 图形的旋转【十大题型】-2023-2024学年九年级数学上册举一反三系列(浙教版)
3 . 如图,在
中,
,
,射线
是
的平分线,交
于点
,过点
作
的垂线与射线
交于点
,连接
,
是
的中点,连接
并延长与
的延长线交于点
,则下列结论:①
;②
垂直平分
;③
,④
;把所有正确结论序号填在横线上______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f7e12216b01699b2805d03ebceb33c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9e26894dd6c092722e47ea3ffc14283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358b8f66f7cc58907fedb8922d5fa80b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/3/be3adb54-0218-4ebf-888a-aedc1b1f0a90.png?resizew=167)
您最近一年使用:0次
2023-03-02更新
|
85次组卷
|
2卷引用:湖北省黄石市阳新县2022-2023学年八年级上学期期末考试数学试题
4 . 已知
中,
,
,现有以下这些条件:①
;②
;③
;④
.要使
的形状和大小都是确定的,可以添加的条件是______
(写出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/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735bd70c2fa2bf51fd7aa448b20d0be1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3018c687427b6257767eda4a8c6612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ba2098ed6b4137b08932524b72ba37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5fe8897de9cd1844303353867e945f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
您最近一年使用:0次
2022-12-27更新
|
77次组卷
|
2卷引用:福建省福州市马尾区琅岐中学2021-2022学年八年级上学期期末数学试卷
5 . 如图,点A、B、C在一条直线上,
和
均为正三角形,
分别与
交于点M、N,有如下结论:①
;②
;③
;④
;⑤
与
所夹锐角为60°.其中正确的有______________ (填上正确结论的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/644f63756fe9251e65cc14e1ce9723d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6818a98204f62c1b16699d26ca0c3f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a15b8f09bf73e7d0d82d9af1a6f6dfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a1f908b267576344b0067285584762d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71c67dae7c83183ffbf215c58ed1def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5df3be4e18c4662478953781e1a6199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bec55dff70fe8916e7de30db9b3508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73cbd27d06065f2ddd5cf5ccbe5bef48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/44e20656-d95c-46cc-b06b-88bc98ab8081.png?resizew=161)
您最近一年使用:0次
6 . 如图,△ABC和△DCE都是等边三角形,且点B、C、E在同一直线上,AE与BD、CD分别交于点F、H,AC与BD交于点G,连接CF、GH.则下列结论正确的是 _____ .(写出所有正确结论的序号)
①AE=BD;②GD=HE;③△CGH是等边三角形;④CF平分∠BFE;⑤BF=CF+AF.
①AE=BD;②GD=HE;③△CGH是等边三角形;④CF平分∠BFE;⑤BF=CF+AF.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/25/63aa8f25-7064-4a67-8320-dcba5a3e3d36.png?resizew=234)
您最近一年使用:0次
22-23八年级上·全国·期末
7 . 如图,
中,
,
,D为线段
上一动点(不与点B,C重合),连接
,作
,
交线段
于E.以下四个结论:
①
;
②当D为
中点时,
;
③当
为等腰三角形时,
;
④当
时,
.
其中正确的结论是______ (把你认为正确结论的序号都填上).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854f480c60b88b546cb15d3b5622e212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640e9e7c56e8eeda044fb55396088816.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a9608cad892644b4094ed6438b69572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bebd95e4e02ded19f5c0a8de71c27ae7.png)
②当D为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68fbbd17c89f03dbb61cd6ffdb9a0344.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2bc5547bb6d2a7a315962ff75f6ba8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/115d56f2dca3e53ef6db9761cfef7f6e.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e4dbea6a5faecdd8f6c06cf9fd43a90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/421291381be28da4bd16560fd383b4a9.png)
其中正确的结论是
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/12/56a89dea-6703-43c6-80fd-f2a959fbae70.png?resizew=197)
您最近一年使用:0次
8 . 如图,AB
CD,将一副直角三角板作如下摆放,∠GEF=60°,∠MNP=45°.下列结论:①GE
MP;②∠EFN=135°;③∠BEF=75°;④∠AEG=∠PMN.其中正确的结论有_____ (写出所有正确结论的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/7/7f21b5b5-85cb-4604-87a1-fd3d3fe60810.png?resizew=130)
您最近一年使用:0次
2022-08-16更新
|
525次组卷
|
4卷引用:综合复习与测试(3)(第十一十二章)(培优篇)(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)综合复习与测试(3)(第十一十二章)(培优篇)(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)河北省廊坊市固安县第五中学2023-2024学年八年级上学期第一次月考数学试题山东省临沂市临沭县2021-2022学年七年级下学期期中数学试题上海市民办尚德实验学校2022-2023学年七年级下学期期中数学试题
9 . 如图,在矩形ABCD中,
,
的平分线交BC于点E,
于点H,连接BH并延长交CD于点F,连接DE交BF于点O,下列结论:①
;②
;③
;④
;其中正确结论的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1d36437d9e50f560536853ecd636d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344067523ee04f5cc546978ca0116e07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2226397b9bdbc77087433b05fb61209.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3aa1da9eef031c9562154530cbafb33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63bd6879942ca6773046e8ce3ee30f40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a317694e9df706c7d51d4b930f9a2a1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/24/79dc483c-6029-4eaf-a279-41f6e4d29cbc.png?resizew=153)
您最近一年使用:0次
21-22八年级上·浙江杭州·期末
10 . 如图,在△ABC中,∠ACB=90°,D为AB上任一点,过D作AB的垂线,分别交边AC、BC的延长线于E、F两点,∠BAC、∠BFD的平分线交于点I,AI交DF于点M,FI交AC于点N,连接BI.下列结论:①∠BAC=∠BFD;②∠ABI=∠FBI;③AI⊥FI;④∠ENI=∠EMI;其中正确结论的序号是_________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/8/bdc430b7-0dd0-4123-b600-bf92f6a2aa8a.png?resizew=138)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/8/bdc430b7-0dd0-4123-b600-bf92f6a2aa8a.png?resizew=138)
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