如图所示,
,
相交于点
,
,
,
与
平行吗?为什么?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a6f7181575bd5becf5937033201c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8410274e1de8c355d3c6ccb2312b8dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/19/e2731a7e-c627-4b09-b030-b2d9c6578e95.png?resizew=101)
2023·陕西西安·模拟预测 查看更多[2]
更新时间:2023-03-18 08:23:45
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相似题推荐
解答题-问答题
|
容易
(0.94)
【推荐1】如图,已知a,b,c三条直线两两相交,∠1=2∠3,∠1+∠3=150°,求∠1+∠2+∠3
![](https://img.xkw.com/dksih/QBM/2019/3/26/2168658563874816/2171800831156224/STEM/4a5f5b7185224985bfefdb469d49a405.png?resizew=114)
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名校
【推荐2】如图所示,直线
与
相交于点
.
的余角是_________;(写一个即可)
(2)
_________;(写一个即可)
(3)如果
,那么根据________,可得
________;
(4)如果
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04616855f5fc6c411bcfb2107904e848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778d3556c2454a733a15629af5c2444f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08991e33572d0a7a830db8de33b88fe9.png)
(3)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/322ee4e4eea934a85d4c11e934eb23c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e515787ebe97ed2662237d9ca51ea1.png)
(4)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a62ad463ca6dd87bc13846b2cba806b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b2557547eecdc826b8282058802d217.png)
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解答题-证明题
|
容易
(0.94)
【推荐1】证明题
(1)已知直线a,b,c,d,e,且
,
.请证明a与c平行.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/9/40fb3282-d667-458e-9554-50387b19eff1.png?resizew=78)
(2)已知直线
与
相交于点D,且
.请证明:直线
与
平行.(本题可用多种方法,选择一种即可)
(1)已知直线a,b,c,d,e,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320c7edf2ad8fbc3d917209e0407ab10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6a30a70db04ca1a42a4614444720d94.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/9/40fb3282-d667-458e-9554-50387b19eff1.png?resizew=78)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de96d1491567868c54a5fd276489deed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/9/a340655b-ac28-40ff-b53f-2dce9e663759.png?resizew=125)
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解答题-证明题
|
容易
(0.94)
【推荐2】完成下面的证明.
如图,
分别平分
.求证
.
证明:
,
(____________________).
分别平分
,
∴
,
______(____________________).
又
,
(____________________).
∴
(____________________).
如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a244de2ecd7c41578fe1f68d1b046e9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feec0a9b88f655a6104b9a958ae33f12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce38d8a8a7043586aad206f8153d0bc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/8/4373b0ba-b4c4-4a86-83d7-92ba1c956b0a.png?resizew=185)
证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aafdc5b723bb6331af45b4b45a0cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/256b504c32a7ed51b760a9af0feec0ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/187174aac5a44e29caeb66958dac76d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feec0a9b88f655a6104b9a958ae33f12.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bd2fb7dd94fa3121732cce39d85ae15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a1a0141e431fb36fe147392e584be11.png)
又
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9565a3b66fa5b4621ed17a6ccc0636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/721212b7363089a18bc5cbba3ab878a4.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce38d8a8a7043586aad206f8153d0bc.png)
您最近一年使用:0次