如图,在
中,
,
,
于
,
平分
,
与
交于点
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6bcc7201e5c24f1eae2a0b7dae9c7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9805338c9df604a4a3f661fc6c5c4c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84757ce6c1f91aa44edc5a69cf0516a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f79d7939c88e9702962e5917cad290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21b28f28ced0531d1df34fcf04c6c67f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f79d7939c88e9702962e5917cad290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36719f1e764ee0e719b65c49fae84677.png)
22-23八年级上·四川绵阳·阶段练习 查看更多[22]
四川省绵阳市绵阳东辰国际学校2022-2023学年八年级上学期10月月考数学试题黑龙江省哈尔滨市巴彦县第一中学2022-2023学年八年级上学期第一次月考数学试题新疆维吾尔自治区哈密市第四中学2022-2023学年八年级上学期期中数学试题四川省绵阳市2022-2023学年八年级上学期10月月考数学试题(已下线)专题7.7 三角形内角和定理(知识讲解)-2022-2023学年八年级数学上册基础知识专项讲练(北师大版)辽宁省大连市甘井子区第七十六中学2022-2023学年八年级上学期第一次月考数学试题江西省赣州市章贡区第三中学2022-2023年八年级数学上学期期末质量检测试题(已下线)第06讲 三角形中角平分线模型-【多题一解&一题多解】冲刺2023年中考数学满分应对方法与策略(全国通用)(已下线)重难点02 三角形(五种模型)-【满分全攻略】2022-2023学年七年级数学下学期核心考点+重难点讲练与测试(沪教版)广东省惠州市知行学校2022-2023学年七年级下学期开学考试数学试题甘肃省陇南市礼县第六中学2022-2023学年八年级上学期期中数学试题北京市西城区第八中学2022-2023学年八年级上学期开学考试数学试题河南省许昌市襄城县2023-2024学年八年级上学期期中数学试题四川省德阳市旌阳区第二中学校教育集团2023-2024学年八年级上学期期中联考数学试题四川省德阳市第二中学校教育集团2023-2024学年八年级上学期期中联考数学试题(乙卷)河南省焦作市武陟县2023-2024学年八年级上学期期中数学试题(已下线)清单01 三角形(10个考点梳理+题型解读+核心素养提升+中考聚焦)-2023-2024学年八年级数学上学期期末考点大串讲(人教版)四川省德阳市广汉市广汉中学2023-2024学年八年级上学期10月月考数学试题河南省信阳市浉河区2023-2024学年八年级上学期期末数学试题广东省深圳市实验学校中学部2023-2024学年七年级下学期期中数学试题山东省烟台市莱州市2023-2024学年七年级下学期4月期中考试数学试题陕西省榆林市子洲县周家硷中学2023-2024学年七年级下学期月考数学试题
更新时间:2024-01-18 15:25:21
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相似题推荐
解答题-问答题
|
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(0.85)
【推荐1】如图,
,
平分
,
平分
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/11/2000bc49-188a-4896-9e0c-16645e57668c.png?resizew=118)
(1)求
的度数.
(2)若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff5c21185c13eae675906dabd3593c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/11/2000bc49-188a-4896-9e0c-16645e57668c.png?resizew=118)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15886bb1365d039d8e4450cae287788d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/886c25cbaff27a9c4cf52dacec0eac4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418ebb89d29f4f631b055c911e8d178a.png)
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名校
【推荐2】如图,直线
和直线
交于点E,
分别平分
和
.
(1)求证:
.
(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/0f53caeff4df83df81d132bfb21c2599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4598486f8c5ac28b1165b76e78105979.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6282292819434a8905a212427613fd85.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/6/86efbd47-bfc8-4f72-be09-888991260883.png?resizew=166)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e458dd1ce1c8dcdc2becac146d9dc231.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45a193b98c7a98ab53d39ed3dfed2ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd1bc0388e7fad3e849ca39c67f5034.png)
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【推荐1】“一线三等角”模型是平面几何图形中的重要模型之一,“一线三等角”指的是图形中出现同一条直线上有3个相等的情况,在学习过程中,我们发现“一线三等角”模型的出现,还经常会伴随着出现全等三角形.
根据对材料的理解解决以下问题∶
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/dc0a7612-5840-45b2-9be3-488c4c36253c.png?resizew=552)
(1)如图1,
,
.猜想
,
,
之间的关系:__________
(2)如图2,将(1)中条件改为
,
,请问(1)中的结论是否成立?若成立,请给出证明;若不成立,请说明理由;
(3)如图3,在
中,点
为
上一点,
,
,
,
,请直接写出
的长.
根据对材料的理解解决以下问题∶
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/dc0a7612-5840-45b2-9be3-488c4c36253c.png?resizew=552)
(1)如图1,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6abaa9d18e162e0601889398a5823337.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(2)如图2,将(1)中条件改为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dccbdea5a79a1eb3ec5124adfab15dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
(3)如图3,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7faabc484ce3666706c1beffda4bcfe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e8289f5dabd85890bfe7b0222c7cf93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b0393ce62b24aa5f9b740d4cc6743b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e82a0052299f414cff1e7afcc5aa19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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【推荐1】如图,已知
中,
为
上一点,
交
于
,
.
![](https://img.xkw.com/dksih/QBM/2022/7/14/3025264870694912/3069849314091008/STEM/501208095254444fbe6475b30812a740.png?resizew=106)
(1)求证:
;
(2)若
,
与
的角平分线相交于
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/e0d2b4784ca73e0478d3ae08fd494a8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
![](https://img.xkw.com/dksih/QBM/2022/7/14/3025264870694912/3069849314091008/STEM/501208095254444fbe6475b30812a740.png?resizew=106)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfffc4b756bd8b93304efc27c3d7b41.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8721d2586f10e2438a025777829a925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97fe25614e7035e0833c021a78ceb6ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e7106619c08f2bcc1d21f846e8a0de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0a4620a1a68b59a8fc241735ac1d8be.png)
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