2022八年级上·浙江·专题练习
1 . 已知
中,
,
,点
为
的中点,点E、F分别为边AB、AC上的动点,且
,连接EF,下列说法正确的是______ .(写出所有正确结论的序号)①
;②
;③
;④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745ed217e265e8d34d81c38e86260b31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.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/b91f064bb73019053992fe781a53356a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bae5867e2dbc5fa09bc4fefffee683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9545fa63b0f69136cf7146e14f897e84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efbc0e76b7abb656327bdc97226713e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745ed217e265e8d34d81c38e86260b31.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/396b632d-0fa3-449c-903d-05b19061e134.png?resizew=206)
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名校
2 . 如图,点D是等边
边
上的一个动点,以
为边作等边
,连接
.则下列结论正确的是______ (填正确的序号).
①
;②D在
上运动的过程中线段
有最小值;③四边形
的面积是定值;④
.
![](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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc59641467014c8be833e0781f04b1b.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/8bc1cbcd6d00f0c36bad8254297d9f33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8196909b00ad21a6ac480fcbf1be1fb9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/6/ecee2adf-950a-46f8-8931-e0e20ac2ac8b.png?resizew=175)
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3 . 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 |
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4 . 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: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
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(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)
名校
5 . 如图,
为
的直径,
,
、
分别交
于点
、
,
于点
,
于点
,
,下列结论:
;
;
;
;
上述结论中正确的是______
填上所有正确结论的序号![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.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/8e99cd1610de98c8332da8c4520aad6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8136d1005cee4f37655508ecf0e856a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f81e24376a13d648c2ed0dc73bc710e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1af52cb73c4f24422ff5edeae792096e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167a994eda6e1db8bad43b91967e0386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ef56afb914cc88d01c8d3b291b17e63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b371a8f2d4951b451ca3ae5495d43afd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad558cea7bfcb44118a409691902c990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a301324443eb93b467134a86890dd9ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/21/1a9923b8-39ed-4637-aa78-25add6ca5231.png?resizew=137)
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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 . 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
8 . 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
9 . 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)
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10 . 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°.
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