22-23八年级上·全国·课后作业
1 . 如图,已知
,
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb9fa847f893bc238c97ee4e916e5368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424269ceef173843aae76e39ecdf6111.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c244edbf77fbb8e9c017515e370c5c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a510a3eb906b3ef0760b0d1723d11ae.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/20/8f00ba8e-b868-47d4-af94-d586133aca55.png?resizew=149)
您最近一年使用:0次
2023-03-16更新
|
1067次组卷
|
4卷引用:广东省佛山市南海实验中学2022-2023学年七年级下学期数学期中试题
广东省佛山市南海实验中学2022-2023学年七年级下学期数学期中试题(已下线)【浙教版课时练习】八年级上册1.4 全等三角形山东省济宁市任城区实验初中2022-2023学年八年级上学期期末数学试题山东省德州禹城市某校2023-2024学年八年级上学期10月月考数学试题
2 . 如图,
和
都是等腰直角三角形,
,点
、
、
在同一条直线上,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/11/b081a70d-0094-474b-97bf-fb9a731349e8.png?resizew=179)
(1)求证:
;
(2)求
的度数;
(3)过点
作
于点
,若
,
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c240781f88a6295b9d31036be90454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/11/b081a70d-0094-474b-97bf-fb9a731349e8.png?resizew=179)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b83407b7a590f1529162e79b8073a62.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6282292819434a8905a212427613fd85.png)
(3)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc91d24995f16acfb67b775805c9821a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e67056a6e0f7a714d0383048b2871423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432cce1481829c4dfe2bd557f6e9aa4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
2023-03-06更新
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312次组卷
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3卷引用:广东省雷州市第八中学2022-2023学年八年级下学期期中数学试题
名校
3 . 在等边
中,
为射线
上一点,
是
外角的平分线,
,
于
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/25/f9a7801a-5eb7-4d92-9c96-df0ba47eca61.png?resizew=415)
(1)如图1,求证
;
(2)如图1,若点
在线段
上(不与
,
点重合),求证:
;
(3)如图2,若点
在线段
的延长线上,(2)中的结论是否仍然成立?请说明理由.
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2d40d5cb59338d3cb1dd504bb12d107.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc90fee532e50d319081d571410421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/25/f9a7801a-5eb7-4d92-9c96-df0ba47eca61.png?resizew=415)
(1)如图1,求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28971fe3e3f9d3849400e98b46fc3ba.png)
(2)如图1,若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f56245f57518983e0d8a9ee8dc1dcb.png)
(3)如图2,若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
2023-02-24更新
|
516次组卷
|
2卷引用:广东省广州市黄埔区2022-2023学年八年级上学期期末数学卷
4 . 如图,
的三个顶点坐标分别为
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/24/1883035f-f6b1-4fa2-8e54-aa23984b91ab.jpg?resizew=313)
(1)画出
关于y轴的对称图形
;
(2)在第一象限的格点(网格线的交点)上找一点D(___,___),使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d14cd46db17d64f86660b987402503a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ec80124140bfd0645885def65b77092.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe280beba9666c98fb0be7c460dd81a8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/24/1883035f-f6b1-4fa2-8e54-aa23984b91ab.jpg?resizew=313)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)在第一象限的格点(网格线的交点)上找一点D(___,___),使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9391f3cf06422d1645a2b83b6302eef0.png)
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5 . 如图,将两根同样的钢条
和
的中点固定在一起,使其可以绕着
点自由转动,就做成了一个测量工件内径的工具.这时根据
,
的长就等于工件内槽的宽
,这里判定
的依据是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/095fd8dfd68e8da984ea37b38442fcd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095fd8dfd68e8da984ea37b38442fcd8.png)
A.边角边 | B.角边角 | C.边边边 | D.角角边 |
您最近一年使用:0次
2023-02-15更新
|
485次组卷
|
12卷引用:广东省深圳市龙华区2022-2023学年七年级下学期期末数学试题
广东省深圳市龙华区2022-2023学年七年级下学期期末数学试题山东省潍坊市2022-2023学年八年级上学期期末数学试题(已下线)第04讲 全等三角形的综合应用(知识解读+真题演练+课后巩固)-2023-2024学年八年级数学上册《知识解读·题型专练》(苏科版)(已下线)第03讲 全等三角形的综合应用(知识解读+真题演练+课后巩固)-2023-2024学年八年级数学上册《知识解读·题型专练》(人教版)(已下线)第05讲 全等三角形的综合应用(知识解读+真题演练+课后巩固)-2023-2024学年八年级数学上册《知识解读·题型专练》(浙教版)江苏省苏州工业园区金鸡湖学校2022-2023学年七年级下学期第二次月考数学试题山西省晋城市泽州县2023-2024学年八年级上学期期中数学试题山西省晋城市阳城县2023-2024学年八年级上学期期中数学试题江苏省无锡市二泉中学2023-2024学年八年级上学期10月月考数学试题辽宁省盘锦市大洼区第二初级中学2023-2024学年八年级上学期第二次月考数学试题湖北省武汉市二中广雅中学2023-2024学年度八年级上学期月考数学试题(已下线)专题03 全等三角形的综合应用(五大题型)(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)
6 . 下列命题中,是真命题的有( )个
①同旁内角互补;②两条边及一个内角分别对应相等的两个三角形是全等三角形;③
的算术平方根是3;④若
,则点
在第一象限或第三象限
①同旁内角互补;②两条边及一个内角分别对应相等的两个三角形是全等三角形;③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5be7821872c2f83d39ffaea5216d09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d5f0d374837655cc286d326305da36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613cf13784a9575251f3fc9eafdae559.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2023-02-11更新
|
146次组卷
|
2卷引用:广东省茂名市高州市第一中学附属实验中学等3校2022-2023学年八年级下学期2月月考数学试题
7 . 如图,
与
相交于点
,
,若用“
”证明
,还需添加的条件是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/12/7cf34c29-1da0-4d19-b877-a0eb98fef4f4.png?resizew=142)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/1c35c43d90814396ff06336fa45e9650.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a290f047f50481318d040c604d72f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a19c5d03c413746b2ce45730e2f7344.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/12/7cf34c29-1da0-4d19-b877-a0eb98fef4f4.png?resizew=142)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 如图,在平行四边形
中,对角线
,
相交于点O,点E,F在
上,且
.
;
(2)不添加辅助线,请你补充一个条件,使得四边形
是菱形;并给予证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92034dd2bb9480b18709d01153467f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2758611194cb0a19d367c8ebbddd70.png)
(2)不添加辅助线,请你补充一个条件,使得四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/910936ec9fb419d51ce2f5ea817f8401.png)
您最近一年使用:0次
2023-01-27更新
|
257次组卷
|
5卷引用:广东省惠州市光正实验学校2022-2023学年九年级下学期3月月考数学试卷
广东省惠州市光正实验学校2022-2023学年九年级下学期3月月考数学试卷河南省郑州市金水区郑州龙门实验学校2022-2023学年九年级上学期期末数学试题(已下线)数学(湖南株洲卷)-学易金卷:2023年中考第一次模拟考试卷(已下线)黄金卷01-【赢在中考·黄金8卷】备战2023年中考数学全真模拟卷(江苏徐州专用)(已下线)专题04特殊的平行四边形的性质与判定(十大题型)【好题汇编】-备战2023-2024学年八年级数学下学期期末真题分类汇编(天津专用)
9 . 如图,将线段
绕点
逆时针旋转
得
,连接
,作
的外接圆
,点
为劣弧
上的一个动点,弦
相交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/21/181f3f58-80bd-4fa2-9e1d-95038293411e.png?resizew=139)
(1)求
的大小;
(2)当点
运动到何处时,
?此时若
,求
的半径;
(3)若圆的半径为4,在点
运动过程中,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0f6710038e74507839def28db6e657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/21/181f3f58-80bd-4fa2-9e1d-95038293411e.png?resizew=139)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb686e4f5e3938575bc547e849d5513f.png)
(2)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545e18836bc7fee22f8f813a6f525d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7bae5203f4b4acf23779114b3466e17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(3)若圆的半径为4,在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13ec9a812274ad0839f20ba17348687.png)
您最近一年使用:0次
名校
10 . 已知,在半圆
中,直径
,点
、
在半圆
上运动,(点
、
可以与A、
两点重合),弦
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/17/b2a5f2ba-e887-485d-ad17-92a0efe0eaf2.png?resizew=629)
(1)如图1,当
时,求证:
;
(2)如图2,若
时,求图中阴影部分(弦
、直径
、弧
围成的图形)的面积;
(3)如图3,取
的中点
,点
从点A开始运动到点
与点
重合时结束,在整个运动过程中:
①求点
到
的最小值距离;
②直接写出点
的运动路径长______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c24a968c73e960698a572ab01e3698.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/17/b2a5f2ba-e887-485d-ad17-92a0efe0eaf2.png?resizew=629)
(1)如图1,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f7abf31402fcfd6f86fb434adc37d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c99c9b81535f77e6c4ac21a33b9a75ba.png)
(2)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56e08c088f4281baf6c431ca4ee1fa0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(3)如图3,取
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
①求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
②直接写出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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