如图,在边长为1的正方形网格中,
的顶点均在格点上,点A,B的坐标分别是
,把
绕点O逆时针旋转90°后得到
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/a0760570-9b34-4d70-bcbc-691ed678d973.png?resizew=251)
(1)画出
,直接写出点
,
的坐标;
(2)求在旋转过程中,
所扫过的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5972ccb9d699196b68d7c521a3847e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f00ac42342a18f47cb58bc8d9cf39c5e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/a0760570-9b34-4d70-bcbc-691ed678d973.png?resizew=251)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f00ac42342a18f47cb58bc8d9cf39c5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
(2)求在旋转过程中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
2020·浙江绍兴·模拟预测 查看更多[2]
更新时间:2021-01-05 16:28:01
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】图①、图②均是边长为1的小正方形组成的5×5的网格,每个小正方形的顶点称为格点.线段AB的端点均在格点上.在图①、图②分别找到两个格点P、Q,连结PQ,交AB于点O.
![](https://img.xkw.com/dksih/QBM/2020/6/16/2485969546878976/2490967826087936/STEM/6b8c8f1338af4662be83fb9fbc7fb98c.png?resizew=295)
(1)在图①中,线段PQ垂直平分AB.
(2)在图②中,使得BO=
,要求保留画图痕迹,标好字母.
![](https://img.xkw.com/dksih/QBM/2020/6/16/2485969546878976/2490967826087936/STEM/6b8c8f1338af4662be83fb9fbc7fb98c.png?resizew=295)
(1)在图①中,线段PQ垂直平分AB.
(2)在图②中,使得BO=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a083184384d99791f2314f373fb382fb.png)
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解答题-作图题
|
适中
(0.65)
【推荐2】如图,在每个小正方形的边长都是
的方格纸中,有线段
和线段
,点
、
、
、
都在小正方形的顶点上.
(1)在方格纸中画出面积为
的菱形
,且点
,
都在小正方形的顶点上;
(2)在方格纸中画出以
为底边且面积为
的等腰
,点
在小正方形的顶点上,并直接写出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/25/3966a179-8c1c-461f-bf11-f236cedb7ca5.png?resizew=226)
(1)在方格纸中画出面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7f27ebcef70a3ebbbe8d2e53ea0896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(2)在方格纸中画出以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/371a01aa43a5201bb36389beea9ee1b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f6f853317967c15f48a56798f6c64c.png)
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解答题-问答题
|
适中
(0.65)
【推荐1】如图,三角板ABC中,∠ACB=90°,AB=2,∠A=30°,三角板ABC绕直角顶点C顺时针旋转90°得到△A1B1C,求:
![](https://img.xkw.com/dksih/QBM/2015/3/20/1573815446028288/1573815452450816/STEM/dcfb649af0544d21bb4c786683a49c5a.png)
(1)
的长;
(2)在这个旋转过程中三角板AC边所扫过的扇形ACA1的面积;
(3)在这个旋转过程中三角板所扫过的图形面积.
![](https://img.xkw.com/dksih/QBM/2015/3/20/1573815446028288/1573815452450816/STEM/dcfb649af0544d21bb4c786683a49c5a.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/097cb8ae563fd4d7e770c493a14cb577.png)
(2)在这个旋转过程中三角板AC边所扫过的扇形ACA1的面积;
(3)在这个旋转过程中三角板所扫过的图形面积.
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解答题-作图题
|
适中
(0.65)
【推荐2】下图是单位长度为1的正方形网格,点A、B、C都在格点上;
![](https://img.xkw.com/dksih/QBM/2015/12/3/1573938324889600/1573938331131904/STEM/e5f75c33d9434991b2b74349ea6df8b2.png)
(1)画出将图中的△ABC绕点A逆时针旋转90°的△AB’C’ ,(其中B、C的对应点分别是
B’、C’)
(2)求(1)中点B在运动过程中所经过的弧长.
(3)求(1)中边AC在运动过程中所扫过的区域的面积.
![](https://img.xkw.com/dksih/QBM/2015/12/3/1573938324889600/1573938331131904/STEM/e5f75c33d9434991b2b74349ea6df8b2.png)
(1)画出将图中的△ABC绕点A逆时针旋转90°的△AB’C’ ,(其中B、C的对应点分别是
B’、C’)
(2)求(1)中点B在运动过程中所经过的弧长.
(3)求(1)中边AC在运动过程中所扫过的区域的面积.
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】如图,在
中,
于点D,
为锐角.
![](https://img.xkw.com/dksih/QBM/2022/5/11/2977131157774336/2978753464573952/STEM/d6687776-1071-471c-ab68-a24cdf448782.png?resizew=247)
(1)将线段
绕点A逆时针旋转(旋转角小于
),在如图中求作点D的对应点E,使得
;(要求:尺规作图,不写作法,保留作图痕迹)
(2)在(1)的条件下,过点B作
于点F,连接
,若
,探究线段
与
的数量关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c86ef20d87c3c94c0ba6b5addd1095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://img.xkw.com/dksih/QBM/2022/5/11/2977131157774336/2978753464573952/STEM/d6687776-1071-471c-ab68-a24cdf448782.png?resizew=247)
(1)将线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7efc841d4bd475c8f9f8ce2d682d783b.png)
(2)在(1)的条件下,过点B作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f2a245381e615882ee5feb7793a1df6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dd1a7b0b538d66982b2ea06c61ce269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e655d5685366254b9f77aff2c4c72f84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
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解答题-作图题
|
适中
(0.65)
【推荐2】如图,在由边长均为
个单位长度的小正方形组成的网格中,
的顶点均为格点(网格线的交点).
为位似中心,在正方形网格内画出
的位似图形
(其中点
的对应点为
),且
与
的相似比为
;
(2)在(
)的条件下,将线段
绕点
按逆时针方向旋转
得到线段
,请画出线段
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe103f073845122c66f22dcb14b711f.png)
(2)在(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34876d748f30fa4fc2eb6a686b5ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34876d748f30fa4fc2eb6a686b5ff5.png)
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解答题-作图题
|
适中
(0.65)
【推荐1】如图,
顶点坐标分别为
,
,
.
关于点O的中心对称图形
,直接写出点
的坐标为________.
(2)画出
绕原点O逆时针旋转
的
,直接写出点
的坐标为________.
(3)若
内一点
绕原点O逆时针旋转
的对应点为Q,则Q的坐标为________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f106fc9906d58643cab12a40b421c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40da7eb6b510203214bcd3d11d6afd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04022146e183e3c78af5c3fc3a8f6333.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91147a72e713b4749d2a0f1daaf65399.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe639eab78eafd2d40ea70aa5d3f21d.png)
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解答题-作图题
|
适中
(0.65)
【推荐2】如图,已知△ABC的三个顶点的坐标分别 为A(-6,0)、B(-2,3)、C(-1,0).
![](https://img.xkw.com/dksih/QBM/2015/4/1/1573828191125504/1573828196737024/STEM/d87e5973cff343af85c5a70aeeda198e.png)
(1)将△ABC绕坐标原点O逆时针旋转90°.画出对应的△A′B′C′图形;
(2)若四边形A′B′C′D′为平行四边形,请直接写出第四个顶点D′的坐标.
![](https://img.xkw.com/dksih/QBM/2015/4/1/1573828191125504/1573828196737024/STEM/d87e5973cff343af85c5a70aeeda198e.png)
(1)将△ABC绕坐标原点O逆时针旋转90°.画出对应的△A′B′C′图形;
(2)若四边形A′B′C′D′为平行四边形,请直接写出第四个顶点D′的坐标.
您最近一年使用:0次