1 . 如图,点O在直线AB上,
,
,OE是
的平分线,
.
的度数.
(2)找出图中与
互补的角,并求出
补角的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f042c8513aa0d73ed6706f6ac1b36880.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d660c35fc327081bdd306aad0b35317f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc2eaf2acb7e954cc0c4aacdc1f29f34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418ebb89d29f4f631b055c911e8d178a.png)
(2)找出图中与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843adec8fba1741ccb81a9017cfb815f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843adec8fba1741ccb81a9017cfb815f.png)
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2022-08-06更新
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4卷引用: 天津益中学校2022-2023学年七年级上学期期末考试数学试卷
天津益中学校2022-2023学年七年级上学期期末考试数学试卷(已下线)专题01 相交线(六大题型)【好题汇编】-备战2023-2024学年七年级数学下学期期末真题分类汇编(天津专用)河南省平顶山市汝州市2021-2022学年七年级下学期期中数学试题河北省邯郸市临漳县2022-2023学年七年级下学期期末数学试题
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2 . 如图,O为直线AB上一点,
与
互补,OM,ON分别是
,
的平分线.
![](https://img.xkw.com/dksih/QBM/2022/1/21/2899481459548160/2900101340282880/STEM/50c3ee17-7815-4c84-8928-cd63600811bc.png?resizew=247)
(1)根据题意,补全下列说理过程:
∵
与
互补,
∴
.
又
___________=180°,
∴∠_________=∠_________.
(2)若
,求
的度数.
(3)若
,则
(用
表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
![](https://img.xkw.com/dksih/QBM/2022/1/21/2899481459548160/2900101340282880/STEM/50c3ee17-7815-4c84-8928-cd63600811bc.png?resizew=247)
(1)根据题意,补全下列说理过程:
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbdbd0de43b8f7c6e6ee5011e6f3144f.png)
又
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4783ece2c6340a8eb6e022787c9185a7.png)
∴∠_________=∠_________.
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/722c34586112d2c7889e088c72dd1152.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826fa702e700b8536f77e44b134ce334.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b18857f1a237b6f437fb5abdaa814afe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fa5cf44105da68471ae4a2df38068fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
2022-01-22更新
|
626次组卷
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6卷引用:天津市耀华中学2021-2022学年七年级上学期期末数学试题
天津市耀华中学2021-2022学年七年级上学期期末数学试题天津市和平区耀华中学2021-2022学年七年级上学期期末数学试题天津市和平区天津益中学校2021-2022学年七年级上学期期末数学试题(已下线)专题4.33 余角和补角(分层练习)(提升练)-2023-2024学年七年级数学上册基础知识专项突破讲与练(人教版)(已下线)专题4.10 几何图形初步章末拔尖卷-2023-2024学年七年级数学上册举一反三系列(人教版)(已下线)专题4.9 直线与角章末拔尖卷-2023-2024学年七年级数学上册举一反三系列(沪科版)