如图,直线
与
相交于点O,
,
,
的余角是 (把符合条件的角都填出来)
(2)图中除直角相等外,还有相等的角,请写出三对:
① ;② ;③ .
(3)①如果
.那么根据可得
度.
②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/178e3fa2e4de57a4c067e79be7d798e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60380ca89b244ae59af6551b5fdf25be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778d3556c2454a733a15629af5c2444f.png)
(2)图中除直角相等外,还有相等的角,请写出三对:
① ;② ;③ .
(3)①如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/322ee4e4eea934a85d4c11e934eb23c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da18f399d61bdec50bfada2b941c07dd.png)
②如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a62ad463ca6dd87bc13846b2cba806b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b2557547eecdc826b8282058802d217.png)
23-24七年级上·江苏淮安·阶段练习 查看更多[2]
江苏省淮安市淮安区淮安曙光双语学校2023-2024学年七年级上学期12月月考数学试题(已下线)第二章第01讲 两条直线的位置关系(7类热点题型讲练)-【帮课堂】2023-2024学年七年级数学下册同步学与练(北师大版)
更新时间:2024-01-01 09:53:09
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相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】已知
是直线
上的一点,
是直角,
平分
.
与
在直线
的同侧.
①若∠
,则
的度数为______________;
②若
,求
的度数.
(2)如图2,
与
在直线
的异侧,直接写出
和
之间的数量关系,不必说明理由.
![](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/ed66570f697459aba9daa2eaf9460bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
①若∠
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba23fd193fb570c8d84fd733cbd51407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bea7b811fa609b8e92da877471564e07.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21331c2a4e20d6d182eff6e129c7e2af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bea7b811fa609b8e92da877471564e07.png)
(2)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f55c6ac896ab4277fae2230a6e10b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bea7b811fa609b8e92da877471564e07.png)
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适中
(0.65)
【推荐2】如图所示,E,F分别是四边形
两组对边延长线的交点,
分别平分
若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d154cfcdf270998727e8d35b7dfa3a2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9e2546becb6cc76b4ea6f4d653972b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e5c71b96c34eca17081dae952b7a69e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7d6902c8862bd2616be038549f77aff.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/72cc1866-4f09-430b-91d2-3b10a47d64ac.png?resizew=120)
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解答题-证明题
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适中
(0.65)
名校
【推荐1】规定:有两组边相等,且它们所夹的角互补的两个三角形叫兄弟三角形.如图,
,
,
,回答下列问题:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/14/119f7907-2577-4a19-a4d5-51cabec88812.png?resizew=143)
(1)求证:
和
是兄弟三角形.
(2)取
的中点P,连接
,请证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fca3734de79f7f50b552ef62b29dc7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33cbad6599796efc1c177ae9349feda9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3d3c378b1118d331d30b63fc587b270.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/14/119f7907-2577-4a19-a4d5-51cabec88812.png?resizew=143)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/173bc7a36757d77f01213411edd25241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7189182cc23d759be2764d141952737b.png)
(2)取
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/973c45f890e129601ea522f73b0c008b.png)
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解答题-问答题
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适中
(0.65)
【推荐2】已知:点
为直线
上一点,过点
作射线
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/11/a25a7ebc-5270-49a9-a72f-107e77a9e151.png?resizew=146)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/11/328d5d89-7955-4fcd-9349-e02012237650.png?resizew=169)
(1)如图1,求
的度数;
(2)如图2,过点
作射线
,使
,作
的平分线
,求
的度数.
![](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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbb6a70dd29662017ca458e43b7dd777.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/11/a25a7ebc-5270-49a9-a72f-107e77a9e151.png?resizew=146)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/11/328d5d89-7955-4fcd-9349-e02012237650.png?resizew=169)
(1)如图1,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
(2)如图2,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8cc88685997c7586d1d4bf75a055433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9425d02202600fd4b0bbbc7cc5ac54f6.png)
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