正方形ABCD中,AB=4,点E、F分别是CD、BC边上的动点,且始终满足DE=CF,DF、AE相交于点G.以AG为斜边在AG下方作等腰直角△AHG使得∠AHG=90°,连接BH.则BH的最小值为( )
![](https://img.xkw.com/dksih/QBM/2022/4/23/2964537703260160/2966691612033024/STEM/2ff6000e-798a-43dd-b338-e83d1d61d42b.png?resizew=152)
![](https://img.xkw.com/dksih/QBM/2022/4/23/2964537703260160/2966691612033024/STEM/2ff6000e-798a-43dd-b338-e83d1d61d42b.png?resizew=152)
A.![]() | B.![]() | C.![]() | D.![]() |
2022·山东济南·一模 查看更多[4]
2022年山东省济南市槐荫区九年级下学期4月网上测试数学试题(一模)29-圆的基本性质(已下线)易错模型03 最值模型(八大易错分析+变式训练+易错题通关)-备战2024年中考数学考试易错题(全国通用)(已下线)重难点03 几何最值问题(5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(广东专用)
更新时间:2022-04-26 21:32:26
|
相似题推荐
单选题
|
较难
(0.4)
【推荐1】如图所示,在△ABC中,内角∠BAC与外角∠CBE的平分线相交于点P,BE=BC,PB与CE交于点H,PG
AD交BC于F,交AB于G,连接CP.下列结论:①∠ACB=2∠APB;②S△PAC:S△PAB=AC:AB;③CH=HE;④∠PCF=∠CPF;⑤∠CPA=∠CEA.其中,正确的有( )
![](https://img.xkw.com/dksih/QBM/2021/11/19/2854712870559744/2859463156645888/STEM/5d7946b8f76d457bba7c70848028b014.png?resizew=172)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dbfed4adc6b576f875ce75e35ed4b34.png)
![](https://img.xkw.com/dksih/QBM/2021/11/19/2854712870559744/2859463156645888/STEM/5d7946b8f76d457bba7c70848028b014.png?resizew=172)
A.5个 | B.4个 | C.3个 | D.2个 |
您最近一年使用:0次
单选题
|
较难
(0.4)
【推荐2】如图,四边形
是矩形,点
在
边上,
平分
且
,
垂足为点
,连接
并延长交
于点
,连接
交
于点
,连接
交
于点
,有下列结论:①
;②
垂直且平分
;③
;④
;⑤
.其中正确的结论有( )个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e4e363bfd418579e6229230df034bbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f49d1de7c6dfc04b6e84e23eec0a1d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f400f920f851793c2c1c564eddfe5f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efdbd495966ecedc026f68ecee289287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bfc8f3fa8984d227c128b44dcd8f4a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e20a5a18047dd404543cbeb77476462b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/24/6ddbc078-4214-442d-be5b-cc7da4e194c2.png?resizew=167)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
单选题
|
较难
(0.4)
【推荐1】如图,正方形
,点E,F分别在边
,
上,
,
,
与
交于点M,
与
交于点N.有如下结论:①
;②
;③
;④
.上述结论中,所有正确结论的个数有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/9/65d217ca-1842-41e3-ab52-c89c0084865e.png?resizew=150)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/a0a3600b1760a63a10c9a0429b439dc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce33c23cc79d51dbfeeb4fba58cc34f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783b84ed8d927b77491092f7d2ee2989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a8cd58c8eff3c7aaf382a5539c18a53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5517361a59828e6924b35867a361784e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f343c38b5a00ecc5b9f7dd29aaab094f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/9/65d217ca-1842-41e3-ab52-c89c0084865e.png?resizew=150)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
单选题
|
较难
(0.4)
真题
【推荐2】如图,在正方形
中,点E是
上一点,延长
至点F,使
,连结
,
交
于点K,过点A作
,垂足为点H,交
于点G,连结
.下列四个结论:①
;②
;③
;④
.其中正确结论的个数为( )
![](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/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03687d97d61b4a7cecbb73f2a6604212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc6c310fa3c3363a42fe869a70bcc080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d082705f206ce766aee9bc16da9ed77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def9592180a20f4a7e1b3194848193f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e70893e954b74482fe96288ea336b925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/566e7140c9420c0047aba3bc2197c03f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1439313554592339999ce7e31d64f83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60f8a9c6104a2b1269f20a474dad3fa7.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
单选题
|
较难
(0.4)
名校
【推荐1】如图,抛物线
与x轴交于A、B两点,抛物线的顶点为D,点C为
的中点,以C为圆心,
长为半径在x轴的上方作一个半圆,点E为半圆上一动点,连接
,取
的中点F,当点E沿着半圆从点A运动至点B的过程中,线段
的最小值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/17/0c5ce7b0-6efa-44a3-8a82-3dfa41d60ff4.png?resizew=155)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17d794141572c8b1e70957754f32b9eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/17/0c5ce7b0-6efa-44a3-8a82-3dfa41d60ff4.png?resizew=155)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较难
(0.4)
名校
【推荐2】如图,在
中,
,
,点D为
边上一动点(不与点B、C重合),
交
于点E,垂足为点H,连接
并延长交
于点F,则以下结论错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08313da7b66283d2e0b3987f3e6761f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497846628a41a9bc750a645e045afb47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
A.当![]() ![]() |
B.当![]() ![]() |
C.![]() ![]() |
D.当![]() ![]() |
您最近一年使用:0次
单选题
|
较难
(0.4)
解题方法
【推荐1】勾股定理是几何中一个重要定理.著名数学家毕达哥拉斯用如图①所示的图形验证了勾股定理,把图①放入矩形内得到图②,∠ACB=90°,BC=2AC,E,F,G,H,I都在矩形MNOP的边上,则
的值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/ce31e61e-b95d-49fc-a19d-d6ae261d9f51.png?resizew=281)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7541ace605f3573c2cfa72c21962b5e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/ce31e61e-b95d-49fc-a19d-d6ae261d9f51.png?resizew=281)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较难
(0.4)
【推荐2】如图,在正方形
中,
是等边三角形,
的延长线分别交
于点
、
,连接
,
与
相交于点
.给出下列结论:①
;②
;③
;④
.其中正确的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4234cf4d8159f5df0333bcc269ffe099.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79f6bec0d2dab9b9efedfe86d1159b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/b624977a4bef8e7ae356c166157d8afd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d412bd974b908fe3135621f7ed15c6d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fce19faa541de8abc7361396c3d8925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a05700bbb4fdd4d4cb1f6f22f89529e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0508fa6685f601e34b3ff1873c77c13.png)
A.①②③④ | B.①②③ | C.②③④ | D.①②④ |
您最近一年使用:0次