1 . 学习完第五章“相交线与平行线”后,杜老师布置了一道几何题如下:如图,已知直线
被直线
所截,
平分
,
,求
的度数.
善于动脑的小军快速思考,找到了解题方案,并书写出了如下不完整的解题过程.
解:
(已知),
( ).
( ).
(邻补角的定义),
(等式性质).
平分
(已知),
( ).
(等式性质).
(等式性质).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c4cd264c97c1f261229925cc5a6761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f68e4414c9ab464bf433385c03705f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f26f1303c43392a1cc633df7de052776.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/191c1d68303fa3c15a3aae2cfa752878.png)
善于动脑的小军快速思考,找到了解题方案,并书写出了如下不完整的解题过程.
解:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de2704141141967e39d3e31b84e969e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c0ba82e5745335cb512eeadccabbd7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69730b772d16bcd51c249bec27f88ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caa259343ce1f7b9218eedf84750ac6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4a4bd7514d8e661e0ae60d1d84f3b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a53f087ea0e65f4cf1ca21d716febd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f68e4414c9ab464bf433385c03705f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ebcb79a2efa7fc659fed89c0f8f5d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fd20f0cde47bfba7d7c95ff7c1b96f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cc3603d38d926a73c0cf7f81d9fdcb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
您最近一年使用:0次
2 . 如图①,在
中,
,
平分
,
于点
.试探究
与
,
的数量关系.
,
的特殊值求
值并寻找它们的数量关系,得到下面几组对应值:(单位:度)
上表中
________,猜想得到
与
,
的数量关系为______
(2)【深入研究】证明(1)中猜想得到的
与
,
的数量关系;
(3)【类比运用】如图②,在
中,
平分
,
是线段
上一点,
于点
.若
,
,则
的大小为_________度;
(4)【学以致用】如图③,在
中,
,
平分
,点
在
的延长线上,
于点
,分别作
和
的平分线,交于点
.设
,
.则
的大小为________(用含
的式子表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ab74bb80fd9af8c46c88b7eb82a0976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e37b078d02601f76f0f8320b410809f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e37b078d02601f76f0f8320b410809f.png)
![]() | 60 | 70 | 70 | 75 | 80 |
![]() | 20 | 10 | 30 | 45 | 20 |
![]() | 20 | 30 | 20 | ![]() | 30 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e37b078d02601f76f0f8320b410809f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
(2)【深入研究】证明(1)中猜想得到的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e37b078d02601f76f0f8320b410809f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
(3)【类比运用】如图②,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4567ae3f7827588855f39569d4f7c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2594e927cb7ed022acc039c3bb136d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6c19410c7abeae002ca97cfad4c791f.png)
(4)【学以致用】如图③,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ab74bb80fd9af8c46c88b7eb82a0976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4567ae3f7827588855f39569d4f7c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060705794ef87cc71dac40c57f27b1d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c962fe4f47732b8e6e83d17ff2b9af13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d6a5d91c35bf548b368a5c1ae8712cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d4b76647dcfb6c6beaa81fb23fed576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19768d8c55deb4973820aeab7a224e6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d708cb763716467219215cdc0782c0a6.png)
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3 . 如图,在
中,
,
的角平分线
,
相交于点P,过P作
交
的延长线于点F,交
于点H,则下列结论①
;②
;③
;④
;⑤
,正确的序号是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f76899b3a0bfbbdae7cb1148ad4bf018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13508fdc9e840fe612431360a6d451ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68fddda9e7f4d7140bf357d76c9e23d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b78ee7688245dbb6507829992bbde2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99256fcfc0f71e0e8992c2cf40b93cee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcb841495e2727979a24e2f0e6597537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afd0cc41839b2e843b48aa81705b68e6.png)
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名校
4 . 如图,
,F为
上一点,
,且
平分
,过点F作
于点G,且
,则下列结论:①
;②
;③
平分
;④
平分
.其中正确结论的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f9a1644fd45bed1463a5b0a40c603e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c57b07f75e97d9f84718bd495ebcf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67868a097fc9997cfc7fbbbfb7dcb2d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4026c1251d1cced3d5cab8708baa4863.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0919dba80630a4ff72a5ac5a072e6f5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37a9d4526ddf01eb414b7257661799b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb19a526aa5abfddcb00532e0689fd79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bab17635a999236e8d2e35017a208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/556a2b38e682cf711229124358a5e5c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83f1f880e5ffbff036953acaca90c41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5754ed0cdc3305585f34eb0c8345fad.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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30卷引用:七年级数学期末模拟卷(辽宁专用,北师大版全册)-学易金卷:2023-2024学年初中下学期期末模拟考试
(已下线)七年级数学期末模拟卷(辽宁专用,北师大版全册)-学易金卷:2023-2024学年初中下学期期末模拟考试甘肃省兰州市华侨集团2023-2024学年八年级上学期期末数学试题陕西省西安市第三中学2023-2024学年七年级下学期月考数学试题四川省德阳市中江县2023-2024学年七年级下学期第一次月考数学试题四川省德阳市中江县2023-2024学年七年级下学期3月月考数学试题福建省厦门市集美区上塘中学2023-2024学年七年级下学期期中数学试题(已下线)专题02 相交线与平行线(考题压轴,压轴必刷30题)-2023-2024学年七年级数学下学期期中考点大串讲(北师大版)山东省济南市2023-2024学年七年级下学期期中考试数学模拟试题山东省临沂市费县2023-2024学年七年级下学期期中数学试题广东省江门市江门市新会尚雅学校2023-2024学年七年级下学期期中数学试题(已下线)七年级数学期末模拟卷(长沙专用,人教版全册)-学易金卷:2023-2024学年初中下学期期末模拟考试四川省达州市达川区达川区铭仁园学校2023-2024学年八年级下学期期中数学试题(已下线)2023—2024学年名校期末好题汇编(人教版七年级数学下册)——专题一—相交线与平行线四川省泸州市古蔺县金兰教育集团2023-2024学年七年级下学期联合检测数学试题湖北省孝感市安陆市2023-2024学年七年级下学期第二次月考数学试题内蒙古自治区鄂尔多斯市康巴什区康巴什区第一中学2023-2024学年七年级下学期期中数学试题黑龙江省牡丹江市2021-2022学年七年级下学期期中数学试题四川省乐山市市中区2022-2023学年七年级上学期期末数学试题(已下线)第1章 平行线 单元检测卷(A卷)-2022-2023学年七年级数学下册《同步考点解读·专题训练》(浙教版)(已下线)(培优特训)专项7.1 平行线的性质与判定-2022-2023学年七年级数学下册《同步考点解读·专题训练》(苏科版)四川省达州市渠县中学2022-2023学年八年级下学期入学考试数学试题广东省广州市第五中学、五中附中2022-2023学年七年级下学期期中数学试卷 (已下线)七年级下册期末模拟测试预测题03(考察内容:七年级下册)-2022-2023学年七年级数学下学期期中期末考点大串讲(人教版)安徽省芜湖市沈巷中学2022-2023学年七年级下学期第三次月考数学试题湖北省黄石市大冶市2022-2023学年七年级下学期期末数学试题四川省自贡市荣县长山片区2022-2023学年七年级下学期3月月考数学试题山东省滨州市滨城区2022-2023学年七年级下学期期中数学试题江西省宜春市丰城市江西省丰城中学2023-2024学年七年级上学期月考数学试题四川省遂宁市射洪市射洪中学校2023-2024学年七年级上学期12月月考数学试题(已下线)专题6.3 期末复习之选填压轴题十六大题型总结-2023-2024学年七年级数学上册举一反三系列(华东师大版)
5 . 如图,直线
相交于O,
,求证:
是
的角平分线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28d2790a97390935125aa897417f970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/428e235c4939838c1a07814ca33280db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418ebb89d29f4f631b055c911e8d178a.png)
您最近一年使用:0次
6 . 如图,
平分
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
,
,则
的度数为( )
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8a896e05730e8dd3bee64a4911c33dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 【问题初探】
(1)数学活动课上,李老师和同学们共同探究平行线的作用.李老师给出如下问题:直线
,点
为
,
之间一点,连接
,
,得到
,试探究
与
,
的数量关系.
①小红根据题意画出图形,如图1,经过探究得出结论:
.
②小明根据题意画出图形,如图2,经过探究得出结论:
.请你选择一名同学的结论,写出证明过程.
(2)李老师和同学们发现,在解决上面题目的过程中,都运用了在拐点作平行线的方法,平行线起到了构造等角或补角的作用.为了帮助学生更好的体会平行线的作用,李老师将图1进行变换并提出了下面问题,请你解答.
如图3,直线
,点
,
在
,
之间,
,求
的度数.
【学以致用】
(3)如图4,直线
,
与
,
交于点
,
,点
在
,
之间,点
在
上,直线
平分
交
于点
,若
,求证:
平分
.
(1)数学活动课上,李老师和同学们共同探究平行线的作用.李老师给出如下问题:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](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/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4598486f8c5ac28b1165b76e78105979.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4598486f8c5ac28b1165b76e78105979.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060705794ef87cc71dac40c57f27b1d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1384d0a02d097ac7aa8a19e8da6f9767.png)
①小红根据题意画出图形,如图1,经过探究得出结论:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad4c90e9af0b332d856d33add121495.png)
②小明根据题意画出图形,如图2,经过探究得出结论:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c952c66585a39fc051cd11dde701b5ff.png)
(2)李老师和同学们发现,在解决上面题目的过程中,都运用了在拐点作平行线的方法,平行线起到了构造等角或补角的作用.为了帮助学生更好的体会平行线的作用,李老师将图1进行变换并提出了下面问题,请你解答.
如图3,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](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/042d1d6900e06311b685eac31b160f0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbda76abde3f1e7a36902fb79cf624a.png)
【学以致用】
(3)如图4,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b16523b4ed5a2d674c60cafaad10500d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7af3d1e5d1eb9a948685799beacfea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ea8be9535f942121f6f6d873d03272.png)
您最近一年使用:0次
名校
8 . 如图,直线
分别与直线
相交于点G、H,已知
平分
交直线
于点M,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28d2790a97390935125aa897417f970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3f15266fc3a2cd2078fb0facb48807b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29784b19fa797d17854a57ba822b1d9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5324ce5fd43c5b05e8fad764880f7b3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7日内更新
|
100次组卷
|
4卷引用:辽宁省辽阳市第九中学2023-2024学年七年级下学期期中数学试题
9 . 如图,
,
,
的角平分线
交
于点
,则
的度数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b55c891fc3a424a9d305a108b838b222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b9ca5dba780317ac0aa0b8878209ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e3e203f1f9f5eccd69f4a95f211f07.png)
您最近一年使用:0次
10 . 如图,在三角形
中,
平分
,
是
上一点,过点
作
交
于点
,点
在
上且满足
.
;
(2)若
于点
,
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21b28f28ced0531d1df34fcf04c6c67f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e04278f3778bd98f8294e9602345e92d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6be267ee134afb47b3a98f38bf1f50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598d4e0973e54ee53f85fc68b8534580.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc42287f66ae7c6c569eb8fa5a991e85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac26e2a435a1096499111b49832629be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
您最近一年使用:0次