名校
1 . 如图,已知点B,E,C,F在同一条直线上,
,
,
.
(1)求证:
;
(2)若
,
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/958b45552f9fa1a60016483bd8246be9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a510a3eb906b3ef0760b0d1723d11ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/19/75ffa18b-3460-47e4-ad1c-73a28ca343ff.png?resizew=140)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ca10806fc8c3c3efd6859f526b76900.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41bef89ac0dd5ae192cd9c7222d5041b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1612dbaf3d93e619356063b3f569ae4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
您最近一年使用:0次
2023-07-15更新
|
960次组卷
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5卷引用:四川省雅安市汉源县汉源县第二中学2022-2023学年七年级下学期期中数学试题
四川省雅安市汉源县汉源县第二中学2022-2023学年七年级下学期期中数学试题(已下线)第12单元01讲(已下线)专题09 期中押题预测卷02-【好题汇编】备战2023-2024学年八年级数学上学期期中真题分类汇编(人教版)湖北省武汉市汉阳区第三寄宿中学2023-2024年八年级上学期月考数学试题四川省泸州市 叙永县属初中教育共同体 2023-2024学年八年级上学期第一次联合考试(12月月考)数学试题
2 . 如图,已知D为
的边
延长线上一点,
于点F,且交
于点E,
,
.求
的度数.
![](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/7aa30a9ee227af2b387cf6e028c20d7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a52459d2cf85be6684f93828daeb7a32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7948f9529c70aba9adbc4f26816b02ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb8eca20ce2c918ea4034ea15210c7f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/20/cba4b6b1-0a73-45e7-aae4-1de680812b48.png?resizew=166)
您最近一年使用:0次
名校
3 . 如图,在四边形
中,
交
与E,交
于F,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/336828d5-f117-4aaa-87ad-bbf1219d0d9b.png?resizew=160)
(1)求证:
是等腰三角形;
(2)若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3787ec9a132842fa6d519381fa8b0435.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/c5f8360c3f7f5eef84e45425eb195e9d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/336828d5-f117-4aaa-87ad-bbf1219d0d9b.png?resizew=160)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a37ba261860ddad9d11b2e8348a8f3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5adc18ca424552b35ab939e9d57943e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5157b42da58d55daad27d98b2fec15ff.png)
您最近一年使用:0次
2023-01-07更新
|
80次组卷
|
6卷引用:四川省雅安天立学校初中部2019-2020学年八年级下学期第三学月考试数学试题
四川省雅安天立学校初中部2019-2020学年八年级下学期第三学月考试数学试题湖北省武汉市第一中学2018-2019学年八年级(上)月考数学试题(12月份)湖北省黄冈市部分学校2022—2023学年八年级上学期第二次测评数学试题吉林省松原市长岭县2021-2022学年八年级上学期期中考试数学试题(已下线)1.1 等腰三角形(练习)-2022-2023学年八年级数学下册同步精品课堂(北师大版)黑龙江省绥化市望奎县第四中学2023-2024学年八年级(五四制)上学期期中数学试题
名校
4 . 如图,正方形
中,点
是
边上一点,连接
,以
为对角线作正方形
,边
与正方形
的对角线
相交于点
,连接
.求证:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/25/812b895e-f1d6-44e6-a535-efc173869f73.png?resizew=142)
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d0e8404f347a0eb4c76f4d25d9bdac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/25/812b895e-f1d6-44e6-a535-efc173869f73.png?resizew=142)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e22e5ebc4c7eafe2980b1f0ad38063.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d222d3bcc808dd5b62b2a9ccb543a6d7.png)
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5 . 如图所示,
,
,
,则
的度数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/c7b87926-5c41-4a9f-a925-dfdc73db7d4b.png?resizew=154)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcc3ef6a72ecee9efdca1f447fa243d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5479aa681605757534ed9f7279520bc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/605f2976297a0deaa1602ef09d6a5afa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/c7b87926-5c41-4a9f-a925-dfdc73db7d4b.png?resizew=154)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
6 . 如图所示,在
中,
,
分别垂直平分
和
,交
于点
,
,若
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4c865445dda4a59b6d5cb18fd74404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d200b5fe60b56efb0d1139bbf6c4309.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-11-20更新
|
89次组卷
|
3卷引用:四川省雅安市2021-2022学年七年级下学期期末数学试题
7 . 如图,锐角△ABC中,D,E分别是AB,AC边上的点,△ADC≌△ADC′,△AEB≌△AEB′,且C′D∥EB′,BE,CD交于点F.若∠BAC=40°,则∠BFC的度数为 _____ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/80068821-4dee-42f2-bacc-cdac62e96e36.png?resizew=223)
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8 . 如图,多边形ABCDE为正五边形,则∠ACB的度数为______ .
![](https://img.xkw.com/dksih/QBM/2022/4/15/2958846973083648/2961590232875008/STEM/271853a1-d215-414b-9394-bd7c3e37b395.png?resizew=139)
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2022-04-19更新
|
289次组卷
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4卷引用:四川省雅安市2021-2022学年八年级下学期期末数学试题
名校
9 . 如图,直线m∥n,Rt△ABC的顶点A在直线n上,∠C=90°.若∠1=30°,∠2=65°,则∠B=_____ .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/16/cbde545a-c95d-451e-a33f-7759ce1375cb.png?resizew=128)
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2022-03-18更新
|
139次组卷
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3卷引用:四川省雅安市雅安中学2023-2024学年七年级下学期4月月考数学试题
名校
10 . △ABC在下列条件下不是直角三角形的是( )
A.b2=a2﹣c2 | B.a2:b2:c2=1:2:3 |
C.∠A:∠B:∠C=3:4:5 | D.∠A=∠B﹣∠C |
您最近一年使用:0次
2021-12-07更新
|
685次组卷
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11卷引用:四川省雅安中学2018-2019学年八年级上学期第一次月考数学试题
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