利用图形分析问题是一种直观方法,请你自己画图分析下面问题.在
中,
,
,点
、
、
按逆时针顺序排列,将
绕点
顺时针旋转得到
,使点
的对应点
恰好落在边
上,点
的对应点为
,延长
交
于点
,则下列结论一定正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c20ce25d11923a3f85bc2751c098ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2689f0ce5ab3467d8214794d8acb2bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-08-21 15:54:32
|
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【推荐1】如图,某学习小组为测量学校A与河对岸工厂B之间的距离,在学校附近选一点C,利用测量仪器测得
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a70270db5325675a66a77993f0300bff.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,在等腰
中,
,
,
是
的中线,则
的度数是( )
![](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/6d2b365fd3ae84b5355eaa01639e8baf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/6/e4c03848-b2d6-418b-993d-467c9e714082.png?resizew=156)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图,点P是正方形ABCD内一点,将△ABP绕着B沿顺时针方向旋转到与△CBP′重合,若PB=3,则PP′的长为( )
![](https://img.xkw.com/dksih/QBM/2018/5/17/1947314036482048/1948867861143552/STEM/e1bae5a9404e41a7b200ffd8105be5eb.png?resizew=94)
![](https://img.xkw.com/dksih/QBM/2018/5/17/1947314036482048/1948867861143552/STEM/e1bae5a9404e41a7b200ffd8105be5eb.png?resizew=94)
A.2![]() | B.3![]() | C.3 | D.无法确定 |
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【推荐2】对于题目:如图1,平面上,正方形内有一个两直角边长分别为2,5的直角三角形,它可以在正方形的内部及边界通过“移转(即平移或旋转)”的方式,自由地从横放移转到竖放,求正方形边长的最小整数值
.甲、乙作了自认为边长最小的正方形,先求出该边长
,再取最小整数值
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/13/09a7fa42-acfc-48bf-8bdd-4c0216eda973.png?resizew=512)
甲:如图2,当
为直角三角形斜边长时就可移转过去,结果取
.
乙:如图3,当
为直角三角形的两条直角边之和的
倍时就可移转过去,结果取
.
下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/13/09a7fa42-acfc-48bf-8bdd-4c0216eda973.png?resizew=512)
甲:如图2,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c345907ebe27888332b1b44c666cc47.png)
乙:如图3,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45cf86650443d1b86c79b1e3edc7e5c.png)
下列说法正确的是( )
A.甲的思路对,但他的![]() | B.甲的思路和他的![]() |
C.乙的思路对,但他的![]() | D.甲和乙的思路都错 |
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