如图,直线
、
相交于点O,
平分
.
,求
的度数;
(2)若
,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/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9ec9a0b3a5aba39f61ac1ec5084a61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25a91e15ce485284d1a7134d8a0c6c62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9ec9a0b3a5aba39f61ac1ec5084a61.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f019daf4b5603983f8e60b17f2d218a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
21-22七年级下·湖北武汉·期中 查看更多[6]
湖北省武汉市东西湖区2021-2022学年七年级下学期期中数学试题(已下线)专题6.18 余角、补角、对顶角(分层练习)(基础练)-2023-2024学年七年级数学上册基础知识专项突破讲与练(苏科版)四川省遂宁市船山区2023-2024学年七年级上学期期末数学试题(已下线)专题5.2 相交线与垂线(分层练习)-2023-2024学年七年级数学下册基础知识专项突破讲与练(人教版)(已下线)专题01 两条直线的位置关系(九大题型)(题型专练)-2023-2024学年七年级数学下册《知识解读·题型专练》(北师大版)湖南省张家界市慈利县2023-2024学年七年级下学期期中数学试题
更新时间:2023-12-10 19:11:40
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【推荐1】如图,射线
把
分成三个角,且度数之比是
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(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0b06dc01c30d13f64be2ac6a1d811e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed66570f697459aba9daa2eaf9460bcb.png)
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【推荐2】如图,直线
,
相交于点
,
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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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解答题-证明题
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【推荐1】如图所示,已知直线
上有一点
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平分
,射线
平分
.
,求
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7357be8f5a16571cbaca5cab21522dfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a385dbcda4fe818fe2d42354a8fa540.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed66570f697459aba9daa2eaf9460bcb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c25c5f7c75e7cf32bed848327ca2eff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27935c1ef4df2d52ac697678a3c8f39d.png)
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解答题-计算题
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【推荐2】(1)计算:
;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e420f01476bbe3982c3ee946168e40.png)
(2)如图.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://img.xkw.com/dksih/QBM/2023/2/12/3173261616201728/3174501849440256/STEM/57c31c3489a04433926eea9a43a7ffe1.png?resizew=107)
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【推荐2】如图,直线
与射线
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,直线
与
平行吗?为什么?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
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