如图,在直线
上任取一点O,过点O做射线
,
平分
,
平分
,当
时,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bea7b811fa609b8e92da877471564e07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e001a0d929a62004f57c5730caad75c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbee6d5731d6f4bb1e4f2ba3d89b7dc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/24/774a4ad8-883c-4780-b951-f8bd195bd3ce.png?resizew=178)
22-23七年级上·内蒙古赤峰·期末 查看更多[2]
内蒙古自治区赤峰市松山区2022-2023学年七年级上学期期末数学试题(已下线)专题07 角与角的比较(七种考法)-【好题汇编】备战2023-2024学年七年级数学上学期期末真题分类汇编(北师大版)
更新时间:2023-03-08 22:58:44
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【推荐1】如图已知点O为直线AC上一点,OE平分∠AOB,∠DOB:∠DOC=1:3,∠EOD=65°,求∠DOC的度数?
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/12/764448b4-c3b4-4026-b761-1f48a91fd3f8.png?resizew=216)
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【推荐2】已知,
为直线
上一点,
.如图1,若
,
平分
.
![](https://img.xkw.com/dksih/QBM/2022/12/29/3141573308669952/3144310389833728/STEM/89100f27ce8d4e69b9035ec6d9d629fb.png?resizew=235)
(1)求
度数;
(2)请通过计算说明
是否平分
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95a92fcd0cd5e55f1d32d42504a5690.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca207d4223a97f2944c9a8769dd64aad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://img.xkw.com/dksih/QBM/2022/12/29/3141573308669952/3144310389833728/STEM/89100f27ce8d4e69b9035ec6d9d629fb.png?resizew=235)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
(2)请通过计算说明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
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【推荐1】如图,直线
、
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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【推荐2】如图,
是
的外角平分线,交
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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