如图,将边长为2的正方形
绕点
逆时针旋转到正方形
的位置,且点
在对角线
上,
与
相交于点
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/c5c41d81-3b69-4f5e-a007-17c285973b4f.png?resizew=134)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e279ad372652147be73c8a834734df0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/c5c41d81-3b69-4f5e-a007-17c285973b4f.png?resizew=134)
A.![]() | B.![]() | C.2 | D.1 |
更新时间:2023-12-17 15:31:46
|
相似题推荐
单选题
|
适中
(0.65)
【推荐1】如图1,在正方形
中,点
是对角线
上一动点,点
是
的中点.设
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71cd7f8ca98f98715a5023a38ba43456.png)
,已知
与
之间的函数关系图象如图(2)所示,点
是图象的最低点,那么
的值为( )
![](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/d40b319212a7e7528b053e1c7097e966.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/1c421ab2dc57f44899efb36549781347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71cd7f8ca98f98715a5023a38ba43456.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f5b71c93c132c3f5889e832a074978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1a79395523538acf3cbc9fb1716219.png)
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A.![]() | B.![]() | C.2 | D.![]() |
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【推荐2】如图,△ABC内接于⊙O,AD⊥BC于点D,BE⊥AC于点E,AD、BE相交于点H.若BC = 6,AH = 4,则⊙O的半径为 ( )
![](https://img.xkw.com/dksih/QBM/2016/1/5/1573948346662912/1573948352323584/STEM/6297db5ab71f466faf47ab786644fb9f.png)
![](https://img.xkw.com/dksih/QBM/2016/1/5/1573948346662912/1573948352323584/STEM/6297db5ab71f466faf47ab786644fb9f.png)
A.5 | B.2![]() | C.![]() | D.5.5 |
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【推荐1】如图,在平面直角坐标系中,直线
与
轴、
轴分别交于
、
两点,以
为边在第一象限作正方形
,点
在双曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcf319e356d95444e3704cc551d62364.png)
![](https://img.xkw.com/dksih/QBM/2023/1/12/3151374433312768/3152424077770752/STEM/85305115544a4711a6e8e38e4c489221.png?resizew=4)
上,则
的值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/e1654c96-ed9b-4f98-be29-1f35d586e595.png?resizew=144)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c653f3ac494070e375977c3bcb3ede1.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcf319e356d95444e3704cc551d62364.png)
![](https://img.xkw.com/dksih/QBM/2023/1/12/3151374433312768/3152424077770752/STEM/85305115544a4711a6e8e38e4c489221.png?resizew=4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0fcf77664838775a23d28a119452b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/e1654c96-ed9b-4f98-be29-1f35d586e595.png?resizew=144)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,正方形
的边长为1,以对角线
为边作第二个正方形
,再以对角线
为边作第三个正方形
……如此下去,则第n个正方形的边长为( )
![](https://img.xkw.com/dksih/QBM/2023/4/14/3216309027487744/3221201025671168/STEM/150b934362c649da901cb679650e09cd.png?resizew=121)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4b93d7abcfc4c3df48f03aa969c17f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344164942bd5946e83cbdf1ceb98c676.png)
![](https://img.xkw.com/dksih/QBM/2023/4/14/3216309027487744/3221201025671168/STEM/150b934362c649da901cb679650e09cd.png?resizew=121)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
【推荐1】如图,平面内三点A、B、C,
,
,以
为对角线作正方形
,连接
,则
的最大值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/3/9ba7bcdb-1f52-4f01-b3e2-d08d610e5ec9.png?resizew=142)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/3/9ba7bcdb-1f52-4f01-b3e2-d08d610e5ec9.png?resizew=142)
A.25 | B.![]() | C.36 | D.![]() |
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【推荐2】如图,将
绕点A逆时针旋转得到
,点
恰好在边BC上,若
,则
的度数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c021993da445858448d368df42554c8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0374c406b563f0d258aa5c2654bbd06e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84fe95b649936319eecb89c1af994b99.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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