如图,已知正方形
的边长为4,P是对角线
上一点,
于点F,连接
,给出下列结论:①
;②
;③
;④
的最小值为
;⑤
可能是等腰三角形,正确的结论有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/fddcc632-a95f-440b-b5b5-1b344dc8aadc.png?resizew=123)
![](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/544204617f1eb4e26a082a72d27d0bde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6350abc2bc9e38dca81a52a856c0f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62f1aadf4291d961038e8db73a1b4098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/461b5b33f1bee2cee89b70a53bed6f04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7fbd6b9f85c086ac95562fe45e8d969.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/fddcc632-a95f-440b-b5b5-1b344dc8aadc.png?resizew=123)
A.2个 | B.3个 | C.4个 | D.5个 |
更新时间:2023-12-10 17:23:31
|
相似题推荐
单选题
|
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(0.4)
名校
【推荐1】如图,
,
,
平分
,
,交
的延长线于
,且垂足为
,则下列结论:①
;②
;③
;④
;⑤
,其中正确的结论有( )
![](https://img.xkw.com/dksih/QBM/2020/12/5/2607399382458368/2614026451009536/STEM/3b5b19b2-cfad-4fed-89cd-d56ed405d0f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb91cb9a5a14169845d700fbd95890ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e724f45b6be34fe31d7a968ba5cc2c24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d599ed70468036fb95b72012e510ed9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af73e59075f7cb1cdc9232f5b10f8585.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c9ea68cd9659d200587026b9c6ac4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d379ef9a50ae13b4264559ddd64da4.png)
![](https://img.xkw.com/dksih/QBM/2020/12/5/2607399382458368/2614026451009536/STEM/3b5b19b2-cfad-4fed-89cd-d56ed405d0f6.png)
A.2个 | B.3个 | C.4个 | D.5个 |
您最近一年使用:0次
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【推荐2】如图,正方形
的边长为4,点E,F分别在边
上,且
,
平分
,连接
,分别交
于点G,M,P是线段
上的一个动点,过点P作
,垂足为N,连接
,有下列四个结论:①
垂直平分
;②
的最小值为
;③
;④
.其中正确的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dfe75598f350cded09a724493f77cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c55ee522f41c43253050e92b3c8de31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5157b42da58d55daad27d98b2fec15ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4022ea2e9b70df71b776e0d59d88583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9887e1ff61308713287d592c8e8d942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bb1548ddc0e5536a35b1bd78c4e7cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af2fdf1944afebb51cb6a5e6c74aadd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/569b3d6a23459e586ead541d8c63d636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640f1333a295c9618b14e26cfca5d2a4.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
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|
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【推荐1】如图,
,∠ACB=90°,AE平分∠BAC,BF⊥AE,交AC的延长线于点F,且垂足为E,下面的结论:①AD=BF;②BF=AF;③AC+CD=AB;④AB=BF;⑤AD=2BE.其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/10/ad3f1347-5e42-4c5c-99d4-7dbc4c09f3dc.png?resizew=148)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/10/ad3f1347-5e42-4c5c-99d4-7dbc4c09f3dc.png?resizew=148)
A.①②③ | B.①③⑤ | C.②③④ | D.②④⑤ |
您最近一年使用:0次
单选题
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【推荐2】如图,在正方形
中,E,F分别在
,
边上,四边形
与
关于直线
对称,且点
在
边上,
交
于点G,连接
,
下列结论:①
;②
;③
;④
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08c14e87a2bcf7090eab2fea73667d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08c14e87a2bcf7090eab2fea73667d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/284750727aa2c32b2477d126daefb329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b25f3ea33cc08b1e2a0d9c3a9dccaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd371e8b9581fdd0f1c26721bcd66739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d41e5e9c386e9a022feb9290bece26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/119f1c7fa3603ad3c93ffb1d9fdacb6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd92288bf4a96f1f01999ed216cfa05d.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)
【推荐1】如图,在
中,
,
,
,
且
,连接
、
、
,则下列结论:①
,②
为等腰三角形,③
,④
,其中正确的是( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/12/65ebf92c-6bc4-4d71-9f30-0deed7b6a124.png?resizew=177)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b2aabb3232e9ffabad9def25515cbdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec8c8b751122bd9b00231bf1d0218386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8b1472e121da0ae5550329cfda5f0a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30e50e094cd2849e38859b36aad0b0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec1b83dc932a56a3f67bde49860a6b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb49df05f2e31d005735c3f14a21d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/509d8dd6031dc0ef92075877e53fe201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd95dc30c0344788b94289c464a3158e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/12/65ebf92c-6bc4-4d71-9f30-0deed7b6a124.png?resizew=177)
A.①②③ | B.①②④ |
C.②③④ | D.①②③④ |
您最近一年使用:0次
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解题方法
【推荐2】如图,在矩形
中,
,
,
、
、
、
分别为矩形边上的点,
过矩形的中心
,且
.
为
的中点,
为
的中点,则四边形
的周长为( )
![](https://img.xkw.com/dksih/QBM/2020/9/16/2550953275875328/2551554616524800/STEM/9a71e5db-caa8-46a1-9e70-8907ff1f8fa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf7679c8b4b1e442ce4286d4b0e9c32.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/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b95463a97c60db3250cb641bf6523d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef26e92639622271b0ffcbe8b3a6d658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9541defb30093d47b26c95fbf1a63cab.png)
![](https://img.xkw.com/dksih/QBM/2020/9/16/2550953275875328/2551554616524800/STEM/9a71e5db-caa8-46a1-9e70-8907ff1f8fa0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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|
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解题方法
【推荐1】如图,点M、N分别是正方形ABCD的边BC、CD上的两个动点,在运动过程中保持∠MAN=45°,连接EN、FM相交于点O,以下结论:①MN=BM+DN;②BE2+DF2=EF2;③BC2=BF•DE;④OM=
OF( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/18/9d6bbd37-c0e8-474c-aad2-b86ceb8fe6f9.png?resizew=159)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/18/9d6bbd37-c0e8-474c-aad2-b86ceb8fe6f9.png?resizew=159)
A.①②③ | B.①②④ | C.②③④ | D.①②③④ |
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,点E,F分别是边
和
上的动点(不与端点重合),
,
、
分别与对角线
交于点G和点H,连接
.以下四个结论:(1)
;(2)
是等腰直角三角形;(3)
;(4)
,其中正确结论的个数是( )
![](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/192155e6a3aade305b76b1eb7c75e30c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24dfa37067ff455888ebe076eeb1fb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbf5459b20ca890a47ebf8d51d90cc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb06eeaffefc1574ea61f70e1d9e9ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9443fa6711de700f67ba16cedf8a926.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次