如图,正方形
的边长为
,
在
上,且
,
是
上的一个动点,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58ef478c804c71ad3b374196a8ca9d74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6702d692c1e5a3ddb2f77247bf008779.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/8/0808441b-aad3-4957-945c-e9b21852284f.png?resizew=118)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-09-08 19:30:10
|
相似题推荐
单选题
|
较易
(0.85)
名校
【推荐1】直线l是一条河,P,Q是在l同侧的两个村庄.欲在l上的M处修建一个水泵站,向P,Q两地供水,现有如下四种铺设方案,图中实线表示铺设的管道,则M处到P,Q两地距离相等的方案是( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐2】如图,点A,B在直线l的同侧,若要用尺规在直线l上确定一点P,使得AP+BP最短,则下列作图正确的是( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐1】有下列说法:
①一个直角三角形的两条直角边长分别为
,
,则它的斜边长是
;
②一个直角三角形的两边长分别是
,
,则它的第三条边长是
;
③“一个三角形的三条边长分别是
,
,
.因为
,所以这个三角形不是直角三角形”,这里推断的依据是勾股定理的逆定理.其中,正确的个数是 ( )
①一个直角三角形的两条直角边长分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
②一个直角三角形的两边长分别是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
③“一个三角形的三条边长分别是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aea420a5c8d96c1aefc27932a218c35.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】有一个矩形,它的相邻两边长分别为1和2,则它的对角线长为( )
![](https://img.xkw.com/dksih/QBM/2021/8/9/2782223400796160/2786676984463360/STEM/269a4bf646d842fd8d7353bdb28e9004.png?resizew=141)
![](https://img.xkw.com/dksih/QBM/2021/8/9/2782223400796160/2786676984463360/STEM/269a4bf646d842fd8d7353bdb28e9004.png?resizew=141)
A.![]() | B.![]() | C.3 | D.2![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐1】如图,在
中,
,点F是斜边
的中点,以
为边作正方形
若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.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/e73d8c3fe8ecd7b8696921683946218b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4933d20baac09b58ef42347ec5c1e31d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/185e5d6f5fc7ab17618117b276a70520.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】如图所示, 在正方形
中,
为
上一点, 延长
至
,使
,连接
,
与
相交于点
,则下面结论错误的是( )
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21204d1c00149a21f59c004f6b927237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/27/57c57ca7-26f0-4e86-a3ef-96b9ab59245e.png?resizew=133)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次