1 . 如图,直线
,点A在直线
上,以点A为圆心,适当长度为半径画弧,分别交直线
,
于B,C两点,以点C为圆心,
长为半径画弧,与前弧交于点D(不与点B重合),连接
,
,
,
,其中
交
于点E.若
,则下列结论正确的是_________ .(只填序号)
①
;②
;③
;④
;⑤若
,则
与
的周长差1.5.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/027830fc47290062692964077ee481e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520391e280b90fb2986b0d3534b4f9fa.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3104c05e255396a91038e2896aedf5cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff66a9adaacdaf0ada9fcf8e3876d7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1d267eeb09c171c3e847f0597be31c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8bb13740ac13266fe08f0f24948d5ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/3/5ba81b2f-cc28-4e19-b749-681faf0a0d15.png?resizew=191)
您最近一年使用:0次
名校
2 . 如图,在
中,D是
的中点,
,
,延长
至点M,使得
,连接
并延长,交
的延长线于点N,现给出以下结论:
①
;
②
;
③
;
④
.
其中正确的是__ .(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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d320f180419175d75eebc618cc458b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a26cd396cc0c512f544d37c00018749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/21/8e336c55-4c39-45dd-b1b9-135a45b2e67c.png?resizew=201)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594c95ec1d027b7fa228f341d0b253a3.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa42f85c3ea78b90e43d548f89f0d200.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b59d1481a14919877fe8a13507ec2428.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc35792d7e1ad4c8f670d975db45fe2e.png)
其中正确的是
您最近一年使用:0次
2023-07-16更新
|
347次组卷
|
6卷引用:福建省漳州市芗城区漳州一中2022-2023学年七年级下学期期末数学试题
福建省漳州市芗城区漳州一中2022-2023学年七年级下学期期末数学试题(已下线)专题13.3 等腰三角形的性质与判定【十大题型】-2023-2024学年八年级数学上册举一反三系列(华东师大版)(已下线)专题13.2 等腰三角形的性质与判定【十大题型】-2023-2024学年八年级数学上册举一反三系列(人教版)(已下线)专题2.2 等腰三角形的性质与判定【十大题型】-2023-2024学年八年级数学上册举一反三系列(苏科版)(已下线)专题2.2 等腰三角形的性质与判定【十大题型】-2023-2024学年八年级数学上册举一反三系列(浙教版)(已下线)专题15.2 等腰三角形的性质与判定【十大题型】-2023-2024学年八年级数学上册举一反三系列(沪科版)
3 . 在
和
中,
.如图1,点
与点
重合,点
在边
上.如图2,将
绕点
顺时针旋转
,边
与边
分别交于点
时,连接
.下列4个以下结论:
①
;
②当
时,
;
③当
时,
;
④当
时,
为定值.
其中正确的是__________ .(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/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a54b0fcd887c1460f004a91ef0ba02f2.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67e19e9f85eea90e8c00637b4d2a383f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9506adf67d4563138dfeb21365b1ba22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/2/ec97175d-b363-4cd8-9660-06922c81b317.png?resizew=260)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d9e7ef53045ebea91d4e9305c12ce5.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c96cb3ac8290e09c55d4eb336a8608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ded6b9765351ceb0df3e671dfa6d205.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa30a9ee227af2b387cf6e028c20d7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec9f2254db4904e59e76a2bd5dbcf18b.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b76ee688fc482cf94d8dca8f9f70f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37a971dd843f2bf17dfc0c0c6c3a4a36.png)
其中正确的是
您最近一年使用:0次
4 . 如图,点E在
的延长线上,
与
交于点F,且
,
,
,P为线段
上一动点,Q为
上一点,且满足
,
为
的平分线.下列结论:
①
;②
平分
;③
;④
.
其中结论正确的有_____________ (填写所有正确结论的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b49022a6f55817b5d7e3ab443b5491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c5f4b1f0e511aca4626ae846fd31f6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4354365ca0929f8a606ed0bf341e4ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/180876949151620e76f7a63eb314d808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cdd9f345915ae742ed3dcd3f9678264.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d260c4df7b0dc180af6980d21f3371.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7c14050acd1cf1c9ff6ee90b3f07f58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0234cd0cb930b3179609d289c90e22cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d19304561bed6d1da08860a4ccfa714.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3275b04cb57af1d26fe2562cc4daa445.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8e93ad6b96441fae19ed2c713aae98a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36ec7243073566a0ab60a58271970f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf1e9ed01bf2564b8ecdd0663c496366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/158e1af05d874f3b310590fed99711ce.png)
其中结论正确的有
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/25/0775baad-9093-4a9f-877a-12086db1c4b0.png?resizew=223)
您最近一年使用:0次
21-22八年级上·浙江杭州·期末
5 . 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)
您最近一年使用:0次
名校
6 . 如图,
,
的平分线交
于点
,
是
上的一点,
的平分线交
于点
,且
,下列结论:
①
平分
;
②
;
③与
互余的角有2个;
④若
,则
.
其中正确的是______________ .(请把正确结论的序号都填上)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d527b7de54224cc1698843a59a19a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752fa646a2d9cfca34001748445301c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a14654f44613e7dc85413f173e5cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d5ff57f147aa0628fdd47899b5a132.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5af342d3b871ace448ccc7c648528288.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df5466383bedd9dd915a8788547d730.png)
③与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685516a27697104e83b311d76efa17aa.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd465973943bcd766b5275ee204bbf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdd38d3ae52434be8c63e1ad458b09d0.png)
其中正确的是
您最近一年使用:0次
2022-09-26更新
|
148次组卷
|
4卷引用: 山东省滨州市滨城区2021-2022学年七年级下学期期中考试数学试题
7 . 已知:如图,
和
都是等边三角形,
是
延长线上一点,
与
相交于点
,
与
相交于点
,
与
相交于点
,连接
,
,则下列五个结论:
①
;
②
;
③
;
④
是等边三角形;
⑤
平分
.
其中,正确的是______ .(只填写序号)
![](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/8455657dde27aabe6adb7b188e031c11.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/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/169539e30546f4b7a649c7fe408f76a3.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b15b82151bff7cc0238d2034a6129f0.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59c4a4eb0723665f8231dab51c1718e.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12225a1a1eda07908309f8100cc34726.png)
⑤
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbf1667b21a273bf5dd007d65eeda7c.png)
其中,正确的是
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/30/6c13138f-fe71-496a-bed5-dd5a1edea679.png?resizew=148)
您最近一年使用:0次
8 . 三角形中,如果一个角是另一个角的3倍,这样的三角形我们称之为“灵动三角形”.例如,三个内角分别为120°、40°、20°的三角形是“灵动三角形”.如图,∠MON=60°,在射线OM上找一点A,过点A作AB⊥OM交ON于点B,以A为端点作射线AD,交线段OB于点C(我们规定0°<∠OAC<90°).下列结论正确的是_____ .(填入正确序号)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/15/c738ff5d-3222-497a-95ce-69eb9826728d.png?resizew=183)
①∠ABO的度数为30°;
②△AOB不是“灵动三角形”;
③若∠BAC=70°,则△AOC是“灵动三角形”;
④当△ABC为“灵动三角形”时,∠OAC为30°或52.5°或80°.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/15/c738ff5d-3222-497a-95ce-69eb9826728d.png?resizew=183)
①∠ABO的度数为30°;
②△AOB不是“灵动三角形”;
③若∠BAC=70°,则△AOC是“灵动三角形”;
④当△ABC为“灵动三角形”时,∠OAC为30°或52.5°或80°.
您最近一年使用:0次
9 . 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
10 . 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)
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4卷引用: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
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