如图,已知直线
和
与
轴相交所成的锐角分别为
,点A坐标为
,点
为直线
上的一个动点,
为直线
上的两个动点,则
长度的最小值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/20/6eb0c26d-0845-4a9e-aa1f-b0345ccb9652.png?resizew=152)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ccc754e3d0f4004bf4404665499688e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/022609adad9d3e0eae5b014cfd283b54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e26f3e51c374fdeada0b0331701741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f612078b0cdcf31f3c1afa8b0051c8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db7fa56f5b94e6da72b6a126bde0844.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/20/6eb0c26d-0845-4a9e-aa1f-b0345ccb9652.png?resizew=152)
A.2 | B.![]() | C.![]() | D.![]() |
更新时间:2023-05-21 08:55:05
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【推荐1】如图,在
中,
,
,将
绕点C顺时针旋转
后得到
,点B经过的路径为
,将线段AB绕点A顺时针旋转
后,点B恰好落在CE上的点F处,点B经过的路径为
,则图中阴影部分的面积是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/8/393341d2-2af3-43e5-84c0-c11a57cc75a8.png?resizew=160)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,
中,
,
截
的三条边所截得弦长相等,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/21/b3a2ccee-936f-40b5-98ce-656f60c12482.png?resizew=177)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/21/b3a2ccee-936f-40b5-98ce-656f60c12482.png?resizew=177)
A.110° | B.115° | C.120° | D.125° |
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【推荐1】如图,矩形ABCD的长AD=9cm,宽AB=3cm,将其折叠,使点D与点B重合,那么折叠后DE的长和折痕EF的长分别为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/15/2517244b-8950-4951-a9f6-8f7ffe0f02e6.png?resizew=309)
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【推荐2】如图,点O是边长为
的等边△ABC的内心,将△OBC绕点O逆时针旋转30°得到△OB1C1,B1C1交BC于点D,B1C1交AC于点E,则DE的长为( )
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A.2 | B.![]() | C.![]() | D.![]() |
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