1 . 【课本再现】
【定理证明】
(1)为证明此逆定理,某同学画出了图形,并写好“已知”和“求证”,请你完成证明过程.
已知:如图1,在
的内部,过射线
上的点
作
,
,垂足分别为
,
,且
.
求证:
平分
.
(2)如图2,在
中,过内部一点
,作
,
,
,垂足分别为
,
,
,且
,
,连接
,
.
①求
的度数;
②若
,
,求
的长.
思考 我们知道,角的平分线上的点到角的两边的距离相等,反过来,角的内部到角的两边的距离相等的点在角的平分线上吗? 可以发现并证明角的平分线的性质定理的逆定理; 角的内部到角的两边的距离相等的点在角的平分线上. |
(1)为证明此逆定理,某同学画出了图形,并写好“已知”和“求证”,请你完成证明过程.
已知:如图1,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe11a1e6a554ccb7ddeb33a308f62864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac2ef99db257cc1acb08e3a5e0006d49.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/374e2198b495b86b0f8308d28035a3db.png)
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
(2)如图2,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65334978b0519b379910dfc4acf8344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04fb30a9d07e410ac92c34b8ad0133db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca0940f5c21431c089d4f7a221df43c.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3153c876ab20d85f8c06a860ad3cb57c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/284a563413dc0532138fb2a64db8cc2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0433f8116768b42642a7f7e5977ce6.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71f070c1aa967a945113735322fae18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1720da6d65e7fa854d98322d3864240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
名校
2 . 定义:一组邻边相等且对角互补的四边形叫作“等补四边形”.如图1,四边形
中,
,
,则四边形
叫作“等补四边形”.
①在以下四种图形中,一定是“等补四边形”的是( )
A.平行四边形 B.菱形 C.矩形 D.正方形
②等补四边形
中,若
,则
;
③如图1,在四边形
中,
平分
,
,
.求证:四边形
是等补四边形.
(2)探究发现
如图2,在等补四边形
中,
,连接
,
是否平分
?请说明理由.
(3)拓展应用
如图3,在等补四边形
中,
,其外角
的平分线交
的延长线于点
,
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd95dc30c0344788b94289c464a3158e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4e8f68457b449d2860ecd3361753b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
①在以下四种图形中,一定是“等补四边形”的是( )
A.平行四边形 B.菱形 C.矩形 D.正方形
②等补四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6b5abfd7649b7acee7e1b33be0410e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce2a8bf5e05a07c93a7104839fc21849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c3c112368d374afe3c2f8a4a1ce29c.png)
③如图1,在四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd95dc30c0344788b94289c464a3158e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689196a03f24cc3cbe3a34bedbe38be0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)探究发现
如图2,在等补四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727ad3e630a224303d6d3b8ad5c114ba.png)
(3)拓展应用
如图3,在等补四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e37b078d02601f76f0f8320b410809f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640f058b479299659893cf524ddf6544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f21d8e7af78693e5da7957c8034e8bcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
您最近一年使用:0次
3 . 如图,在
中,
,O是
上的一点,以点O为圆心,
的长为半径作
,且
与
相切于点H,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/535bd30e-b9d6-44fc-9de8-8c044c013e86.png?resizew=151)
(1)求证:
平分
;
(2)若
,
,求
的半径.
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/535bd30e-b9d6-44fc-9de8-8c044c013e86.png?resizew=151)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1329f0625ccbdbf61ef6bd732ced0be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
您最近一年使用:0次
4 . 如图,在
中,
,将
绕点A顺时针旋转一定的角度得到
,且点E恰好落在边
上.
(1)若
,则
______![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
(2)求证:
平分
;
(3)连接
,判断线段
与线段
的位置关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e7ba6e267dde1a65a98f9f36b585ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/ea664968-73fb-4840-9632-d934f45c3731.png?resizew=181)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc688c55cf2d34194d90355a1e9ac48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26810ed73e5463c996616b2e71ba797e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8faa67131a39f719be1871606b7927c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a71e8a816d9ef65d4bffd81fd53216.png)
(3)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c3f982d999937891eec4cb22d62e5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c3f982d999937891eec4cb22d62e5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
您最近一年使用:0次
5 . 如图,
是
的直径,
,点E为线段
上一点(不与O,B重合),作
,交
于点C,垂足为点E,作直径
,过点C的切线交
的延长线于点P,
于点F,连接
.
(1)求证:
是
的平分线;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7bae5203f4b4acf23779114b3466e17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c84a7cd47edd57011a3816f7180995b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f392902d611863c6908a48e696e7bd8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/9/2d49f234-0aeb-42a7-8784-039eacc486f9.png?resizew=155)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d451070229ac0bbba9fe73dbd9600602.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21204d1c00149a21f59c004f6b927237.png)
您最近一年使用:0次
名校
6 . 小明将两把完全相同的长方形直尺如图放置在
上,两把直尺的接触点为P,边
与其中一把直尺边缘的交点为C,点C、P在这把直尺上的刻度读数分别是2、5,则
的长度是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
您最近一年使用:0次
2023-03-13更新
|
603次组卷
|
19卷引用:2024年江西省南昌市二十八中教育集团联盟中考一模数学试题
2024年江西省南昌市二十八中教育集团联盟中考一模数学试题2024年江西省赣州市寻乌县中考一模数学试题(I卷)江西省吉安市吉安八校联盟2023-2024学年九年级下学期期中数学试题江西省宜春市高安市2023-2024学年八年级上学期期末数学试题(已下线)热点06++全等三角形与特殊三角形1(已下线)重难点02+三角形与特殊三角形1江苏省扬州市江都区2022-2023学年八年级上学期期末数学试题(已下线)第05讲 线段、角的轴对称性-【暑假自学课】2023年新八年级数学暑假精品课(苏科版)江苏省盐城市亭湖区盐城景山中学2023-2024学年八年级上学期期中数学试题(已下线)吉林省松原市宁江区2023-2024学年八年级上学期期末数学试题浙江省浙师大协同体2023-2024学年八年级上学期数学期末试题江苏省扬州市高邮市2022-2023学年八年级上学期期末数学模拟试题 黑龙江省绥化市第八中学校2023-2024学年八年级(五四制)上学期期末数学试题江苏省扬州市梅岭中学2023-2024学年八年级上学期期末数学试题浙江省温州市龙湾区龙湾区实验中学2023年八年级上学期学习能力诊断卷(一)数学试题山东省菏泽市鲁西新区2023-2024学年八年级下学期3月月考数学试题福建省三明市三元区2023-2024学年八年级下学期期中数学试题(已下线)第五章 生活的轴对称达标测试卷-2023-2024学年七年级数学下册《知识解读·题型专练》(北师大版)辽宁省阜新市细河区2023-2024学年八年级下学期期中数学试题
2020·江西南昌·模拟预测
7 . 如图,已知
与菱形
的边
相切于点
,交边
于点
,交边
于点
,
于点
于点
,连接
.
![](https://img.xkw.com/dksih/QBM/2020/11/5/2586390852698112/2586631521107968/STEM/5140dbb8-e216-44b5-8701-8751b5b7e4f7.png)
(1)求证:
.
(2)试探究
是否为
的切线,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cf33d73483c93f24cc6a1d76ef22ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a3f300b624033ba8da3bef01a652369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd906ba19da842aac9c11c1a0b1e19f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dd6effb4856c5a7bca819b9b6c94e0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53d1f5823803e863aaded49d2ea0ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c28f9f15c5ba200ad56fdaf4c0c36d5.png)
![](https://img.xkw.com/dksih/QBM/2020/11/5/2586390852698112/2586631521107968/STEM/5140dbb8-e216-44b5-8701-8751b5b7e4f7.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e7d95578c9ba65c367d33948b6f4d2.png)
(2)试探究
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
您最近一年使用:0次
18-19八年级上·浙江杭州·期末
8 . 将Rt△ABC绕点直角顶点C逆时针旋转90°后得到△A'B'C,A'B'的延长线与AB交于点D,连接DC,①求证:AB⊥A'D;②求∠
DC的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d7ffb7889a31b267a85f1ea238138e.png)
![](https://img.xkw.com/dksih/QBM/2020/3/12/2417869468172288/2417950698807296/STEM/4c50ed5180b54c2fb7f05c4331eb3a06.png?resizew=218)
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9 . 在图1,2,3中,已知
,
,点
为线段
上的动点,连接
,以
为边向上作菱形
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/b415ef68-5c95-4c8c-b73e-7e33eb4f8b34.png?resizew=471)
(1)如图1,当点
与点
重合时,
________°;
(2)如图2,连接
.
①填空:
_________
(填“>”,“<”,“=”);
②求证:点
在
的平分线上;
(3)如图3,连接
,
,并延长
交
的延长线于点
,当四边形
是平行四边形时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/645d46c17903078e0b38279353c5430d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d0e8404f347a0eb4c76f4d25d9bdac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e00c97fe410a3d0bde4333959b256d2e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/b415ef68-5c95-4c8c-b73e-7e33eb4f8b34.png?resizew=471)
(1)如图1,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a911ba9342ec2d17b55839cb8838d9f.png)
(2)如图2,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
①填空:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d598f4a17ac14970ade9f381e9aee970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a852c13de65877be1f43ac1f88f179d7.png)
②求证:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
(3)如图3,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344164942bd5946e83cbdf1ceb98c676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5509269c540ac83ba34d2e8a31242903.png)
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2019-08-31更新
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1658次组卷
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11卷引用:江西省2019年中考数学试题
江西省2019年中考数学试题(已下线)专题07 几何图形的性质-5年(2018-2022)中考1年模拟数学分项汇编(江西专用)山东省泰安市新城实验中学2019-2020学年九年级中考数学模拟试题(已下线)专题15动点综合问题-决胜2020年中考数学压轴题全揭秘精品(2)2020年河南省师范大学附属中学、新乡市第十中学、河南师范大学实验中学等九年级5月模拟数学试题2020年河北省河师大附中二模数学试题2021年山东省德州市庆云县中考数学模拟(3月份)试题广东省梅州市丰顺县东海中学2022-2023学年九年级上学期期末考试数学试卷(已下线)2020年河北中考数学二模几何综合题广东省梅州市丰顺县东海中学2022-2023学年九年级上学期月考数学试题山西省大同市灵丘县2019-2020学年八年级下学期期末数学试题
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10 . 如图,等边三角形ABC和等边三角形ECD的边长相等,BC与CD两边在同一直线上,请根据如下要求,用无刻度的直尺通过连线的方式画图.
(1)在图①中画一个直角三角形;
(2)在图②中画出∠ACE的平分线.
(1)在图①中画一个直角三角形;
(2)在图②中画出∠ACE的平分线.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/14/f7c0c523-5ecb-43d5-aea0-758933a5d4b9.png?resizew=372)
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2018-04-03更新
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10卷引用:江西省上饶市广丰区实验中学、灜洲学校、私立康桥中学等2018届九年级下学期第一次月考数学试题
江西省上饶市广丰区实验中学、灜洲学校、私立康桥中学等2018届九年级下学期第一次月考数学试题2018年秋(江西省)人教版八年级数学上册 期中检测卷江西省赣州市于都县思源实验学校2018-2019学年八年级上学期期中数学试题江西省宜春市高安市高安中学2019-2020学年八年级上学期期末数学试题江西省宜春市实验学校2019-2020学年八年级上学期期中数学试题江西省宜春实验中学2022-2023学年八年级上学期期中数学试题江西省抚州市南城县2022-2023学年八年级下学期期中数学试卷江西省宜春市宜丰县宜丰中学2022-2023学年八年级上学期月考数学试题江西省宜春市第十中学2022-2023学年八年级上学期期中数学试题江西省赣州市崇义县2023-2024学年八年级上学期期末数学试题