1 . 如图,在
中,
,
于点
,点
在
上,
,
.
(1)求证:
平分
;
(2)若
,
,且
的面积等于
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241465bb8b380fc37d46763241c92e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a20e5d585fbf903ee5affa6d083ab95f.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/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bb92468b5dd1592f388913515ed2e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46705942f192fd8dfadb236398884c48.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/8/8019a1c5-3772-4f73-94d4-e666bf50b896.png?resizew=106)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146a63bac5ecd239f2696801e8eaa0b2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c98f0db1041fa3f958e44c09a5483f19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b36a1938df65db2b68bf7595b97bafa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
您最近一年使用:0次
2023-09-01更新
|
474次组卷
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3卷引用:广西壮族自治区钦州市灵山县烟墩中学2022-2023学年八年级上学期期中数学试题
名校
2 . 如图,点B、C分别在
的两边上,点D是
内一点,
,垂足分别为E、F,且
.求证:点D在
的平分线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dada4b823d9b13e0dd3cb1e029526cd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530950d83896ecc7d836da6b15049f25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/24/ee217152-4fb6-4f14-aea0-4b3fa2e03134.png?resizew=176)
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2023-08-16更新
|
268次组卷
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2卷引用:广西南宁市三美学校外卷2023-2024学年八年级上学期月考数学试题
3 . 如图,在
中,
的平分线与
的外角平分线交于点
,
于点
,
于点
.
(1)若
,求点
到直线
的距离;
(2)求证:点
在
的平分线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2951b9f77413d5f062acb300b09de1f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa685645f0e3c520e2527960680ea663.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/3/eed4882a-cc08-4eb0-9c81-34e8ec624bab.jpg?resizew=193)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520ebde1832c6770008034dedfaa2409.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)求证:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9611e9f185c48d65c618bb31cc6fc6.png)
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名校
4 . 如图,点I在
内,且到三边的距离相等,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852edacacbd44f1622a4295615ea3639.png)
________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d777d15cd733338ecfd0ea63819f62c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852edacacbd44f1622a4295615ea3639.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
您最近一年使用:0次
2023-07-26更新
|
192次组卷
|
12卷引用:广西贵港市覃塘区2023-2024学年八年级下学期4月期中考试数学试题
广西贵港市覃塘区2023-2024学年八年级下学期4月期中考试数学试题2016-2017学年天津南开区八年级上期中数学试卷人教版八年级上册 第12章 全等三角形 单元测试题山西省吕梁市交城县2019-2020学年八年级上学期期中数学试题江苏省南通市海安市十校2019-2020学年八年级上学期10月月考数学试题人教版2020-2021学年数学八年级上学期12.3.角的平分线的性河南省汝南县清华园学校2020-2021学年八年级上学期第一次月考数学试题黑龙江省双鸭山市集贤县县直初中四校2020-2021学年八年级上学期期中考试数学试题江苏省南通市八一中学2021-2022学年八年级上学期第一次限时作业数学试题江西省南昌三中教育集团2022-2023学年八年级上学期期中考试数学试卷辽宁省大连市旅顺口区2022-2023学年八年级上学期期中数学试题辽宁省辽阳市第一中学2023-2024学年八年级上学期第一次质量检测数学(西藏班)试题
名校
5 . 如图是两把完全相同的长方形直尺,一把直尺压住射线
,且与射线
交于点C,另一把直尺压住射线
并且与第一把直尺交于点P,连接
,已知
,则
的度数是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc2e82537469aad99fe4ceef359463d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172766b458ea1e95ab1f5cd70bab7463.png)
您最近一年使用:0次
2023-07-23更新
|
176次组卷
|
3卷引用:广西河池市凤山县2023-2024学年八年级上学期期中考试数学试题
广西河池市凤山县2023-2024学年八年级上学期期中考试数学试题河南省许昌市魏都区第一中学等5校2022-2023学年八年级上学期期末数学试题(已下线)第06讲 平行线的性质(1个知识点+6类热点题型讲练+习题巩固)-【帮课堂】2023-2024学年七年级数学下册同步学与练(人教版)
名校
6 . 如图,在四边形中,
,
,
,
交
于点
,过点
作
,垂足为
,且
.
(1)求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d70676406f26d339465fe3473c0c05.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ee826937d2add7a93aaa1422f8b736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15514bc735fe4b744672edefe00009c.png)
您最近一年使用:0次
2023-07-21更新
|
113次组卷
|
2卷引用:广西壮族自治区来宾市2022-2023学年八年级下学期期末数学试题
7 . 如图,已知在
中,
,
,
,
是
上的一点,
,点
从
点出发沿射线
方向以每秒2个单位的速度向右运动.设点
的运动时间为
.过点
作
于点
.在点
的运动过程中,当
为______ 时,能使
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb262f3529a3e84959fe594b6628c77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c24a968c73e960698a572ab01e3698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35eed9fb23f80002cc31dd57109e102a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0fa1aa5a7a5bb172ed4603f17c8b2c6.png)
您最近一年使用:0次
名校
8 . 如图,
,
,垂足分别为
,
,
,
相交于
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/9/d91f09ad-278b-48ea-b59b-acc7100cba45.png?resizew=171)
(1)若
,求证:
;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f913298f0fae9f55377a8deab9f099dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70734a8e672376bb0bd1522e229f86a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/9/d91f09ad-278b-48ea-b59b-acc7100cba45.png?resizew=171)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52273305805769a438772342b53c289e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49c8dbc31b2e14067ef2f34b4e25f114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
您最近一年使用:0次
名校
9 . 如图,
,
,求证:
平分
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff29971ccc633d89832ffa9bd54afa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df20cb16949420480a8986cb055d0b0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/0e60f56f-b183-43c7-ac52-fa67b1d21bd0.png?resizew=214)
您最近一年使用:0次
2023-01-27更新
|
221次组卷
|
5卷引用:广西壮族自治区贺州市平桂区2022-2023学年八年级上学期期末数学试题
2022八年级上·全国·专题练习
10 . 如图,在
和
中,
,
,
,直线
,
交于点
,连接
.下列结论:①
,②
,③
,④
平分
,其中正确结论的个数是( )
![](https://img.xkw.com/dksih/QBM/2023/1/7/3147712197926912/3149185778409472/STEM/0e6cf15f32d04cb796610ffead11ea66.png?resizew=269)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a9354a07397b21c33820fc2590e814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18550b322762a7ca60922db57e4636d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e294dfd5270b9984a39ea03e654c907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa3da665b0612aed12cbb42c2ddc890.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc67385c66785a669e1a48d0fe5764d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37a0397c811fe80c80ecd5b871201987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f83fbec0cba7879555674a9561819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a2633265e7f45a49d54286cb543e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f19e584dfc2edcc29b0754df052f5f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37a0397c811fe80c80ecd5b871201987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2d55e9d265e3d8a84bb01db3fd8544a.png)
![](https://img.xkw.com/dksih/QBM/2023/1/7/3147712197926912/3149185778409472/STEM/0e6cf15f32d04cb796610ffead11ea66.png?resizew=269)
A.![]() | B.![]() | C.![]() | D.![]() |
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