1 . 如图,已知
两点分别是
上的两动点,
分别平分
和
,射线
的反向延长线与射线
相交于点
.
,求
的度数;
(2)如图2,作
的角平分线
交射线
于点
,求
的度数;
(3)如图3,
为线段
和
上的两定点,若将
沿
翻折,点
对应点
在
的内部,且满足
,
,请求出
与
的关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c807222988da0f4fe48b34042da96ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f47ddc7c9fb41942160e3cafcf756776.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e243883aa3c3ad549acaa4c933738e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07848a00d3056cfb12c1d4c02e37c68f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d9f2bee4f93e23c07e0aaeecf02f43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c118858379800688c993a8b61270b356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a68751936ae6fc396c4c87f15437164c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd20ec2fdd5615deccb8f554f96a7b9.png)
(2)如图2,作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5af84f29bce5daf53b8e7ddbe15ca980.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3d566704b44ea4ef1f99c37bd46902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a298ed3325baafd125f688496fd52e8e.png)
(3)如图3,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15febfda66e733f14aa7115ed4343a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0d13e82ad6bdae51f30e2a3dafd630d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b1a5427d8ff23df0f3ec194756c84c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e310ac26049fd114f77837f60938a17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1ef86ce5b9f16c8e887a074b09fadf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ec2d5b1d87120ec2d546ef2338d1567.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c281fbce022ec3613c98295e696e80f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d194c4be57c0301ae94b6bd29b6f70b.png)
您最近一年使用:0次
2024-03-25更新
|
244次组卷
|
6卷引用:四川省成都市蒲江县2022-2023学年七年级下学期期中考试数学试题
四川省成都市蒲江县2022-2023学年七年级下学期期中考试数学试题江苏省泰州市高港区(高港区)2022-2023学年七年级下学期期中数学试题(已下线)专题7.36 平面图形的认识(二)中的动点问题(分层练习)(综合练)-2023-2024学年七年级数学下册基础知识专项突破讲与练(苏科版)(已下线)专题02 三角形(五种模型)专项训练-【帮课堂】2023-2024学年七年级数学下册同步学与练(苏科版)(已下线)考题猜想07 七年级期中必刷题(压轴必刷35题8种题型)-2023-2024学年七年级数学下学期期中考点大串讲(苏科版)(已下线)考题猜想1-2相交线与平行线(应用思想方法解相交线与平行线问题的9种技巧题型)-2023-2024学年七年级数学下学期期末考点大串讲(人教版)
2 . 如图所示,在 中,已知
是角平分线,
,
.
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68fbbd17c89f03dbb61cd6ffdb9a0344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23dc2d2dd56fcc67698c45a6e0e48f80.png)
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3 . 如图,在
中,
,将
绕点C顺时针旋转得到
,
与
交于点O,点B的对应点为E,点A的对应点D落在线段
上,连接
.
平分
;
(2)试判断
与
的位置关系,并说明理由;
(3)若
,
,求
的面积.
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2689f0ce5ab3467d8214794d8acb2bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23dc2d2dd56fcc67698c45a6e0e48f80.png)
(2)试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85b3a6afb6eb425b53def6e1af3b7121.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f144992e1cbee34868abce1e5ad38c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2281cb6df0c3c518ce5ed19a02b57e.png)
您最近一年使用:0次
2024-03-19更新
|
170次组卷
|
4卷引用:四川省德阳市中江县2022-2023学年九年级上学期期中数学试题
四川省德阳市中江县2022-2023学年九年级上学期期中数学试题(已下线)第三章第04讲 难点探究专题:旋转中的常见类型(5类热点题型讲练)-【帮课堂】2023-2024学年八年级数学下册同步学与练(北师大版)山东省枣庄市薛城区2023-2024学年八年级下学期期中数学试题(已下线)第3章 图形的平移与旋转 全章热门考点专练(4个概念3个性质1个作图3个技巧2种思想)原卷版
4 . 已知:如图,点A、B、C、D在一条直线上,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/16/0eee654b-d2e6-478f-892a-6b4d0bd4d70f.png?resizew=186)
(1)求证:
;
(2)若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c256e15ef9525d1db0352ff2bc985afb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79c4e16cf8823342b3d85aad20b2301.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/16/0eee654b-d2e6-478f-892a-6b4d0bd4d70f.png?resizew=186)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8e290ca69736db986d2af2bf7f4b886.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f73d0830d11e85dcaa376884ad46dc06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b871a762469393cdd22f15aa49ebb8f9.png)
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5 . (1)等腰三角形一腰上的中线将它的周长分为
和
两部分,求等腰三角形的各边长.
(2)等腰三角形一底角的角平分线与另一腰形成的锐角为
,求等腰三角形各底角度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdaf250913cd8d5bd10245da1c496bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caa87e5b49076f307a135bb2f63fa61d.png)
(2)等腰三角形一底角的角平分线与另一腰形成的锐角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c5b696c0ca68ec19b9127c1675051f8.png)
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6 . 如图,在四边形
中,
,
平分
交
于点E,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/a8fccfd6-b1e5-489c-bd28-d37da1967933.png?resizew=117)
(1)若
,求证:
.
(2)若
,
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/387a4b5077b3e2b86449fc3d9d77b335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/a8fccfd6-b1e5-489c-bd28-d37da1967933.png?resizew=117)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13d56d020ccb6a598187f81e987ab6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07b8f53d5fb93efe2609e0936dd38bd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deece9a4d9301fb6028aa1f81a11c23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e418c4354d6c8e172685b9829141e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/936f5f26aac7197d42a41081fb1fda0e.png)
您最近一年使用:0次
7 . 在
中,
,过点B作
交直线
于D,延长
至E,使
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/5/5346e1d7-bf32-49d5-866c-72909d90c87a.png?resizew=276)
(1)如图1,若
,求
的度数;
(2)若
,试探究
与
的数量关系并说明理由;
(3)如图2,若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b77c8ef75793d21d2d5d8bf470a61159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70734a8e672376bb0bd1522e229f86a2.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/d4e92f48e9bfe12d145f7d2a2f0360d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/580a93c380d919150e893b85e934e809.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/5/5346e1d7-bf32-49d5-866c-72909d90c87a.png?resizew=276)
(1)如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a858e3fda1505e5aede22f4d6edd3f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35803969509655f72b4118503ae1c966.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5306ee783ec381da6c03d4fb7ecb4395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35803969509655f72b4118503ae1c966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76bc8e50eeccced1d7f3bc52e09a7d03.png)
(3)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42b730d87bb95763a48c69f1b0329ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af633abfe3cb03f1836db6c570a5bcc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
您最近一年使用:0次
8 . 已知, 在
中,
,
于点D, 点E在线段
上, 且
,点F在线段
上, 且
.
(1)如图1, 试说明
;
(2)如图1, 若
, 且
, 求
的面积;
(3)如图2, 若点F是
的中点, 求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c10d461a7c0b86a2f09c2ea17f38260e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df34369163e511f14028168cb0b21186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4caef0bdaa833b8a6b63302939c20b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/ebec3559-d184-4b94-8f1b-bc1fe081dc91.png?resizew=309)
(1)如图1, 试说明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09a7549e411163fda93c457440d62388.png)
(2)如图1, 若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c264dd2a2ce418ab14e573a668b169f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(3)如图2, 若点F是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5378a3867bf1a7386b1330aa8b36f0a7.png)
您最近一年使用:0次
9 . 已知线段
,点C 是平面内一动点,且
,连接
,将线段 BC绕点 B顺时针旋转
得到线段
, 连接
,
交
于点 E.
(1)如图1, 若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fdd2a3642716fcf5100011eb3ec88.png)
①求
的度数;
②如图2,作
的角平分线
交
于 F,试探究线段
与
之间的数量关系,并说明理由;
(2)若
, 当
最长时, 求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90227acf6ca686cd1dbd1dd556f1eb10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c86b0118d4adeaf60493d13854fffc9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/8d98a2d9-3fe2-4235-a3d7-ef5b29870d89.png?resizew=382)
(1)如图1, 若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fdd2a3642716fcf5100011eb3ec88.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a55a1a244f81097e05e715b69580faa.png)
②如图2,作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76bc8e50eeccced1d7f3bc52e09a7d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/763fa15748b8619cc007630542046edd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
10 . 在平行四边形
中,
,M是
的中点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5181b97a7e43959b8455680157c3b644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e533b38aa568366239517885e144bd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/11/3dc65ab6-7a26-4bec-b9fd-3509347a9a6f.png?resizew=187)
您最近一年使用:0次