如图,等边
内部有一点
,
,
,
,在
、
上分别有一动点
、
,且
,则
的最小值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/acbe5131-5c98-4b52-818d-91e62383c429.png?resizew=128)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/262e062dcdd2039084a356862b123e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49437f474e5805688dff21ded2d1fd7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5bffff8f73d6d85dfafd4e9ad43adc.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38d97f03faed3152db2fd3bd1919944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/506bbc434d386f2d8e10607b70c56c18.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/acbe5131-5c98-4b52-818d-91e62383c429.png?resizew=128)
A.5 | B.![]() | C.![]() | D.7 |
更新时间:2022-11-03 18:25:52
|
相似题推荐
单选题
|
较难
(0.4)
名校
【推荐1】如图,在直线l上依次摆放着七个正方形,斜放置的三个正方形的面积分别为1、1.21、1.44,正放置的四个正方形的面积为
、
、
、
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f30f56664446f32dbbc2c5f12a99374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/791cb74ffdbb0471115c1cf5f49a578a.png)
A.3.65 | B.2.42 | C.2.44 | D.2.65 |
您最近一年使用:0次
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【推荐2】如图,在
中,
,
是
边的中线,
平分
,
,下列结论:①
与
的面积相等;②
;③
;④
一定成立的是( )
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21b28f28ced0531d1df34fcf04c6c67f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e68633cbbe3cc2d0801305f81a7aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d11f2aca70406d0d49531ad2de89fe0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1675fcd2719ec1b9f81bc9842eeaae2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d74e29bb398813380018dd9801ebe329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/9/9b848a0d-e1f9-49e4-8084-8b2012f640ec.png?resizew=185)
A.①③ | B.②③ | C.①③④ | D.①②④ |
您最近一年使用:0次
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【推荐1】如图,在
中,
,点
为
边上的中点,以
为顶点作一个
的角交
、
边于
、
两点,连结
,则知道下列哪个条件就可以计算
的周长( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1af71094b0522a0df6c7fae1580e48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
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|
较难
(0.4)
名校
【推荐2】如图,等腰
,
,
,
于点D.点P是
延长线上一点,点O是线段
上一点,
,下面的结论:①
;②
;③
是等边三角形;④
;其中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fffa3d9c32da53b0ea0c338012ea20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1ccccc58e9149d75ba341f9f4b4d506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b543dd7b99c5361b78c874dd2a18d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2cce190fb2e9724236a1c5c5d657722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9dc427a01582ec222446b352d40ab0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95ce869fa3e84a19978a568cda75789c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/10/6e4ddd6a-d148-4486-a40c-23dcf032d841.png?resizew=198)
A.①③④ | B.①②③ | C.②③④ | D.①②③④ |
您最近一年使用:0次
单选题
|
较难
(0.4)
【推荐1】如图,在等边
中,以
为直角顶点作等腰直角
,
分别交
、
于 点
、
,
为线段
上一动点,
为线段
上一动点,且
, 以下
个结论:①
;②
;③
;④当
的值最小时,
. 正确的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33fb96e255afa645bc0056c442a5103f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ddb320a6ab6b51ca80ddc07d4fcc0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/999a995a6d07c561ce64e8952994160a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dee98eaef726712ade74b9bab943832.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52b50a60d850239f01f8b343733afe4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02245893506cc2a880f09d721c6ad92b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff52d4deadc54eefe25c998123b7d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38b4c9b25adc316b48485082e7dad3b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/befb1c3929ea9f21d25a9985d45b30b6.png)
A.4个 | B.3 个 | C.2 个 | D.1 个 |
您最近一年使用:0次
单选题
|
较难
(0.4)
【推荐2】如图,等边
的边长为6,D是
上一点,
,
交
于点E,接
,F是
上的一点,
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/26/c11931d2-27a8-4f6c-9381-8c09ae2c7fe5.png?resizew=139)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/066cd386723885c535ea720f5817847a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f79d7939c88e9702962e5917cad290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac3d3b55561ec5d4acc242ecd1c7f41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/26/c11931d2-27a8-4f6c-9381-8c09ae2c7fe5.png?resizew=139)
A.2 | B.3 | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较难
(0.4)
【推荐1】如图,在直角
中,
,点
为斜边
上的中点,点
分别在直角边
上运动,且保持
,连接
,在点
的运动过程中,有下列结论:①
为等腰直角三角形;②四边形
不可能为正方形;③四边形
的面积保持不变;④
长度的最小值为4;⑤
面积最大值为8.其中正确的结论有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/abb9f22e-5df3-4b3b-894a-0fe162fb7e6f.png?resizew=201)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c5e107a058d5a819c1f55e25ea499fb.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/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d54431bbb28ebd98db5c1dc6083a75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97075fe3c2a105f5d2d0a27a9f2b3410.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4a5734077dda25a1604262ca08e4f26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a61d8bedef61745ee4fd89a8c0c119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a61d8bedef61745ee4fd89a8c0c119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/abb9f22e-5df3-4b3b-894a-0fe162fb7e6f.png?resizew=201)
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2】如图,在四边形
中,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9438aa3e830096e53fae8e7c8aaec35c.png)
,动点
,
同时从
点出发,点
以每秒
个单位长度沿折线
向终点
运动;点
以每秒
个单位长度沿线段
向终点
运动,当其中一点运动至终点时,另一点随之停止运动
设运动时间为
秒,
的面积为
个平方单位,则
随
变化的函数图象大致为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4ab7e657f01bdfa235f8c4d6681d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9438aa3e830096e53fae8e7c8aaec35c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37750daa8ba3b3fe3e9e2092f81c848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0cc6293cfedec30b124ece908c4c438.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次