如图,正方形
的边长为
,
是对角线
上一动点,
于点
,
于点
,连接
,给出四种情况:
若
为
的中点,则四边形
是正方形;
若
为
上任意一点,则
;
点
在运动过程中,
的值为定值
;
点
在运动过程中,线段
的最小值为
.其中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/796b4cd51f5256652220ec2c7a78edb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5afd58cf78512bc596645d2d5a1643fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/920ae90193d50ae60beafae6f2b4ebcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa712edcfc60a32bed210c8589cabbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82e415812cca9545611c0faa0c01b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90367497e5a78214430a9ae95c993ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8b8edd94bc4d5d517ec77e56800e41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-05-24 16:34:57
|
相似题推荐
单选题
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(0.4)
【推荐1】如图在平面直角坐标系
中,点A、D在第一象限内且点
,点
,点
,
,点B到射线
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab90afe6c65b8d4c2ff042d1c041bec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6927808e592eae5a56d3bf010a2c540c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bdcd23d2c26d9df0b4756d8a715673.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,在平面直角坐标系中,一次函数
分别交
轴、
轴于
、
两点,若
为
轴上的一动点,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b524b29d710b86982c9a9f1df40575e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f02c7ddafc7c472c7013f2239d085c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐1】如图 ,已知在正方形
中,
,E,F 分别是
上的一点,且
,点G在
延长线上且
,连接
,则以下结论:①
,②
,③
④
中正确的个数有( )个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eceff9b68796f5ccd4daa4028e3a182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3258f55e7dd088df2f0d454e88dfbfc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d5b92809bc5c88664eff9e91e985c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d0da215f222f9d925cc15f1dbd6828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfe6d74d4c125e8e5b3ac14e88b3645d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760c8b58414db3d7615de609990544e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb312feb0aa535e6ab7248398bb2f1b5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/14/fe4da160-b240-4dc6-9845-9802c487f0e2.png?resizew=170)
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2】如图,已知
中高
恰好平分边
,
,点
是
延长线上一动点,点
是线段
上一动点,且
,下面的结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/13/e5cb55d3-1a84-43cc-9f4e-d60d7ace4a48.png?resizew=150)
①
; ②
的最小值为
;
③
; ④
.
其中正确的有( )个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d3c9ce32b721995f355eea411340e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ff8c8d239cc12ddc3a899e9f054aa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1ccccc58e9149d75ba341f9f4b4d506.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/13/e5cb55d3-1a84-43cc-9f4e-d60d7ace4a48.png?resizew=150)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ad93fc6683924cdb6a94e8b8db8b78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb5c41e6046363136a7ec1b3dfdca32b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3d9d62804daa6e74daaf8373d3f2e76.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93ca6c526eeda8946845e13b6d9a5b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/804319a2dc902c36c245c6d0ec98d98f.png)
其中正确的有( )个
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
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【推荐1】如图,在△ABC中,AB=6,AC=8,BC=10,P为边BC上一动点(且点P不与点B、C重合),PE⊥AB于E,PF⊥AC于F,M为EF中点.设AM的长为x,则x的取值范围是( )
A.4≥x>2.4 | B.4≥x≥2.4 | C.4>x>2.4 | D.4>x≥2.4 |
您最近一年使用:0次
单选题
|
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【推荐2】如图,在矩形
中,
,
,
是
上异于
和
的任意一点,且
于
,
于
,则
为( )
![](https://img.xkw.com/dksih/QBM/2018/9/22/2037776643104768/2044824134287360/STEM/738c90ccfdf94d0f8dcf438841d2dfa6.png?resizew=95)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bdf82f2b3ac77ee7b9b35aebe0dd83f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd2b7f0278281f7864a5e3ee440857a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa47d1d400789b4d8723a1c4b482bb66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f4e39b200f9656e532bcb5ab78cb86.png)
![](https://img.xkw.com/dksih/QBM/2018/9/22/2037776643104768/2044824134287360/STEM/738c90ccfdf94d0f8dcf438841d2dfa6.png?resizew=95)
A.![]() | B.![]() | C.![]() | D.不能确定 |
您最近一年使用:0次
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【推荐1】如图,边长为1的正方形ABCD的对角线AC,BD相交于点O,∠MPN为直角,使点P与点O重合,直角边PM,PN分别与OA,OB重合,然后逆时针旋转∠MPN,旋转角为θ(0°<θ<90°),PM,PN分别交AB,BC于E,F两点,连接EF交OB于点G,则下列结论:①EF=
OE;②S四边形OEBF:S正方形ABCD=1:4;③BE+BF=
OA;④在旋转过程中,当△BEF与△COF的面积之和最大时,AE=
;⑤OG•BD=AE2+CF2.其中结论正确的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/10/dd8e2558-00c5-4949-8203-24dd20f96864.png?resizew=171)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/10/dd8e2558-00c5-4949-8203-24dd20f96864.png?resizew=171)
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】已知:E、F、G、H分别为四边形
四边中点,顺次连接
、
、
、
得到四边形
,我们把这种四边形叫做中点四边形.有下列说法:①四边形
是平行四边形;②当四边形
为平行四边形时,四边形
是菱形;③当四边形
为矩形时,四边形
是菱形;④当
时,四边形
是矩形;⑤若四边形
是正方形,则四边形
一定是正方形.其中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a16f5621716bfef7a056a3f2712feb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfc1f76257275ab4b04f9bc913535670.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.①③④ | B.①④⑤ | C.①③④⑤ | D.②④⑤ |
您最近一年使用:0次