(1)如图1,在矩形
中,点
,
分别在边
,
上,
,垂足为点
.求证:
.
(2)如图2,在正方形
中,点
,
分别在边
,
上,
,延长
到点
,使
,连接
.求证:
.
【类比迁移】
(3)如图3,在菱形
中,点
,
分别在边
,
上,
,
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61fe81d0b136fc2acc97ab50ffbf6edf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7431fd8f28ca8f2914233e50f39bfebe.png)
(2)如图2,在正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff56ea00ca90825f3d95809de24f639.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24d3d7698a9527c5b88965449e5138db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/081af704634e243d46cc6038dc168ad2.png)
【类比迁移】
(3)如图3,在菱形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9863283a35d77a8976a4fb57179ac483.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbb388a36bd5caaa51b7e3c898e3c906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7471908a0a105f024773d398576a0f2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
2023·山东·中考真题 查看更多[27]
2023年山东省菏泽市中考数学真题(已下线)专题18图形的相似(精选33道)-学易金卷:三年(2021-2023)中考数学真题分项汇编【山东专用】(已下线)专题32图形的相似(优选真题60道)-学易金卷:三年(2021-2023)中考数学真题分项汇编【全国通用】(已下线)专题4.17 探索三角形相似的条件(分层练习)(提升练)-2023-2024学年九年级数学上册基础知识专项突破讲与练(北师大版)(已下线)专题4.18 探索三角形相似的条件(直通中考)-2023-2024学年九年级数学上册基础知识专项突破讲与练(北师大版)(已下线)专题4.26 相似三角形判定定理的证明(直通中考)-2023-2024学年九年级数学上册基础知识专项突破讲与练(北师大版)山东省菏泽市官桥镇官桥中学2023-2024学年九年级上学期期中数学复习试题山东省滨州市邹平市2023-2024学年九年级上学期期中数学试题四川省成都市青白江区成都市大弯中学初中学校2023-2024学年九年级上学期期中数学试题2023年广东省广州市番禺区星海中学中考一模数学试题安徽省六安市金安区六安皋城中学2023-2024学年九年级上学期期末数学试题河南省周口市扶沟县2023-2024学年九年级上学期期末数学试题(已下线)第1讲 相似三角形(已下线)专题6 类比思想山东省枣庄市滕州市北辛街道北辛中学2023-2024学年九年级上学期第二次月考数学试题2024年山东省济南市长清区九年级数学中考模拟预测题2024年广东省江门市培英初级中学中考一模数学试题2024学年山东省枣庄市九年级下学期第一次调研考试数学模拟试题2024年山东省枣庄市台儿庄区九年级第一次模拟考试数学试题2024年贵州省初中数学学业水平考试适应性训练模拟试题(已下线)专题16 相似三角形(考点回归+练透中考6类核心重点考向)-备战2024年中考数学真题题源解密(全国通用)(已下线)重难点02 相似三角形模型及其综合题综合训练(11大题型+满分技巧+限时分层检测)-2024年中考数学【热点·重点·难点】专练(全国通用) 2024年河南省南阳市油田中考一模数学试题(已下线)专题04 四边形的证明与计算(全等、相似、边角计算)-2024年中考数学二轮热点题型归纳与变式演练(全国通用)(已下线)专题16 四边形综合(二)(六大热点题型归纳)-2024年中考数学二轮热点题型归纳与变式演练(云南专用)(已下线)数学(山东济南卷)-学易金卷:2024年中考考前押题密卷2024年内蒙古包头青山区二模数学试题
更新时间:2023-06-27 15:54:15
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图,
是等腰直角三角形,
,
,
是线段
上一点,以
为边,在
的右侧作正方形
.直线
与直线
交于点
,连接
.
(1)猜想线段
与线段
的数量关系和位置关系,并说明理由;
(2)连接
,当
是等腰三角形时,
①当
时求
的长;
②当
时,
的长度是否改变,若改变,请直接写出
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83beb9fd65e75633d2d5e7b010693899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/17/6ba0de41-932e-4ba4-83fa-f22075afa345.png?resizew=361)
(1)猜想线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1002c0b259aac58d98611aa662c07362.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a0bceb0c0408185d80c710c5a9e0cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/439893cd08959fbf1f2ede0728aa08ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,在△ABC中,AD平分∠BAC,DG⊥BC且平分BC于点G,DE⊥AB于点E,DF⊥AC交AC的延长线于点F.
(1)求证:AE=AF;
(2)求证:BE=CF;
(3)如果AB=12,AC=8,求AE的长.
(1)求证:AE=AF;
(2)求证:BE=CF;
(3)如果AB=12,AC=8,求AE的长.
![](https://img.xkw.com/dksih/QBM/2019/6/6/2219695238832128/2222797749911552/STEM/ed12685c45e046e198607aba630a4555.png?resizew=161)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】如图,在菱形 ABCD 中,AB=2,
,点 E,F 分别在 AB,AD 上,BE=DF,连接 EF.
![](https://img.xkw.com/dksih/QBM/2020/7/8/2501304794112000/2501369802866689/STEM/d141da33cc1f41799f22d290ea5a8f35.png?resizew=162)
(1)求证:AC⊥EF;
(2)若点 E,F 分别为 AB,AD 的中点,延长 EF 交 CD 的延长线于点 G,求FG的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d4e574c9d139615d991a168cfbf63b.png)
![](https://img.xkw.com/dksih/QBM/2020/7/8/2501304794112000/2501369802866689/STEM/d141da33cc1f41799f22d290ea5a8f35.png?resizew=162)
(1)求证:AC⊥EF;
(2)若点 E,F 分别为 AB,AD 的中点,延长 EF 交 CD 的延长线于点 G,求FG的长.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】在探究矩形的性质时,小明发现了一个新结论:矩形两条对角线的平方和等于四条边的平方和.如图1,在矩形
中,由勾股定理,得
,
,又由矩形的性质,得
,所以
.
是菱形,对角线
交于点
,求证:
;
(2)【归纳猜想】矩形、菱形都是特殊平行四边形,于是小明猜想:任意平行四边形两条对角线的平方和等于四条边的平方和.你认为小亮的猜想是否成立?如果成立,请利用图3给出证明;如果不成立,请举反例说明;
(3)【拓展应用】如图4,在
中,
的长分别为
是
边上的中线.则
的长是 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53ba90c5d97f3dbf8d3f8b5f8da67cf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a42c88076dfe902a6e4c68baac7ff90b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47663b0a5b54ef66faedfd8247295289.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a8658beefe83fd6394c03256313d04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcf3e532be03af3434285a4932e46c79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a8658beefe83fd6394c03256313d04.png)
(2)【归纳猜想】矩形、菱形都是特殊平行四边形,于是小明猜想:任意平行四边形两条对角线的平方和等于四条边的平方和.你认为小亮的猜想是否成立?如果成立,请利用图3给出证明;如果不成立,请举反例说明;
(3)【拓展应用】如图4,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a526baed599c86cda5a6a48344040ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3e141fd1ef33980e994114b3d065dcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
真题
名校
【推荐1】如图,点
,
分别在正方形
的边
,
上,且
,把
绕点
顺时针旋转
得到
.
(1)求证:
≌
.
(2)若
,
,求正方形
的边长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4794cf7c57bdd4825d9e6615e2527a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eda61683bb1d4d62441f0625097b477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21786fe6fbbd671ba5158f4a920b8884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246b32e19ae21b0cd1f826c47f517ca0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb909eaf6572dc2a0cac7557cb91d2cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b6497c7cada9c849f92d9ad00547ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/2020/7/20/2509813008457728/2510030157012992/STEM/2e96635f-a5af-4e4e-aec8-0f33835f7ecf.png?resizew=136)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图1,点E为正方形ABCD内部一点,AF⊥BE于点F,G为线段AF上一点,且AG=BF.
![](https://img.xkw.com/dksih/QBM/2019/5/30/2214698425999360/2216316158746624/STEM/47544f4dda504fe0a3fe5049f93da76a.png?resizew=281)
(1)求证:BG=CF;
(2)如图2,在图1的基础上,延长BG交AE于点M,交AD于点H,连接EH,移动E点的位置使得∠ABH=∠GAM
①若∠EAH=40°,求∠EBH的度数;
②求证:HE∥AF.
![](https://img.xkw.com/dksih/QBM/2019/5/30/2214698425999360/2216316158746624/STEM/47544f4dda504fe0a3fe5049f93da76a.png?resizew=281)
(1)求证:BG=CF;
(2)如图2,在图1的基础上,延长BG交AE于点M,交AD于点H,连接EH,移动E点的位置使得∠ABH=∠GAM
①若∠EAH=40°,求∠EBH的度数;
②求证:HE∥AF.
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】(1)解不等式:
.
(2)如图,E是
的边
延长线上一点,连接
,交
于点F.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e94d9c2b985ed2eae4a324d949b026d.png)
(2)如图,E是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a821efdb4146e8db9eb812e0482a2660.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/25/524732be-96a6-4f5f-bd2c-ce444e5daa46.png?resizew=169)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图所示,在△ABC中,已知DE
BC.
(1)△ADE与△ABC相似吗?为什么?
(2)它们是位似图形吗?如果是,请指出位似中心.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
(1)△ADE与△ABC相似吗?为什么?
(2)它们是位似图形吗?如果是,请指出位似中心.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/11/c2faf760-1a14-4af2-a67a-369b82e92c56.png?resizew=137)
您最近一年使用:0次