题型:解答题-问答题
难度:0.65
引用次数:134
题号:9170587
如图1所示,在平面直角坐标系中,
、
、
,其中
、
满足关系式
,平移
使点
与点
重合,点
的对应点为点
.
![](https://img.xkw.com/dksih/QBM/2019/12/16/2356386057928704/2357179240325120/STEM/37a159091ed94d2c9b71475deb9afcfb.png?resizew=352)
(1)直接写出
、
两点的坐标,则
(______,______)、
(______,______).
(2)如图1,过点
作
轴交于
点,猜想
与
数量关系,并说明理由.
(3)如图2,过点
作
轴交
轴于
点,
为
轴上点
左侧的一动点,连接
,
平分
,
平分
,当点
运动时,
的值是否变化?如果变化,请说明理由;如果不变,请求出其值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3160fc73f2a90ae4a1a97351ab2673b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9199b50dd0036be9b764c621d1d46f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3082ef27a3eed51d533e27bb6db77b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b137347bb3d6720f1a56546efbeda69.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/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/2019/12/16/2356386057928704/2357179240325120/STEM/37a159091ed94d2c9b71475deb9afcfb.png?resizew=352)
(1)直接写出
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)如图1,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e8344999680784650f29a28159b1edf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781026dac62b5373596f56360bf573a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3e081637bcea5368cc72370bae283b.png)
(3)如图2,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb67729473b1182d52087e0e29acf21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350e954f629c1901a5cec03558319e46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ecbb3ff1615dae3426aa3f4ca4a29f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13173e15e465057714d8844af668252.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dbb3ba8013879414ec3dcca522c7ab0.png)
更新时间:2019-12-17 17:56:21
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图1,已知
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a11be1dce47ca9df1e6999b55c4917.png)
,
,则
的度数为
(2)探究问题:请在图1中探究
,
与
之间有怎样的数量关系,并说明理由.
(3)拓展延伸:若将图1变为图2,题设的条件不变,此时
,
与
又有怎样的数量关系呢?请写出结论并说明理由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a11be1dce47ca9df1e6999b55c4917.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d35d8d8bb0dc17f2f86fe5b230a2b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0905a9a6c132396d9eefa2303ce6b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d19f963f7c803bcfcbb265ec6d4304.png)
(2)探究问题:请在图1中探究
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d19f963f7c803bcfcbb265ec6d4304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b871a762469393cdd22f15aa49ebb8f9.png)
(3)拓展延伸:若将图1变为图2,题设的条件不变,此时
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21b28f28ced0531d1df34fcf04c6c67f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d19f963f7c803bcfcbb265ec6d4304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b871a762469393cdd22f15aa49ebb8f9.png)
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【推荐2】如图(1)所示是一根木尺折断后的情形,你可能注意过,木尺折断后的断口一般是参差不齐的,那么请你深入考虑一下其中所包含的一类数学问题,我们不妨取名叫“木尺断口问题”.
//
,请问
,
,
有何关系并说明理由;
(2)如图(3)所示,已知
//
,请问
,
,
又有何关系并说明理由;
(3)如图(4)所示,已知
//
,请问
与
有何关系并说明理由.
![](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/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c543c3ddc3723fde6bbfca3ea3b921b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b871a762469393cdd22f15aa49ebb8f9.png)
(2)如图(3)所示,已知
![](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/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b871a762469393cdd22f15aa49ebb8f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c543c3ddc3723fde6bbfca3ea3b921b.png)
(3)如图(4)所示,已知
![](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/2a9604d2bee6dab60e5aab4064e21347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545f4a1b21beeb4578f66b907a17f445.png)
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【推荐3】如图,AB∥CD,∠C=50°,点P是射线CD上一个动点(不与点C重合),点E、F都在射线CD上,AE平分∠CAP,AF平分∠BAP.
(1)求∠EAF的度数;
(2)①当∠CAP=20°时,∠1= ,∠2= ;
②当∠CAP=50°时,∠1= ,∠2= ;
③当∠CAP=60°时,∠1= ,∠2= ;
④猜想∠1和∠2的数量关系写出一个等量关系式,并说明理由;
(3)设∠CAP=x°时,∠AEF=y°,
①求y与x的关系式;
②当△ACP为直角三角形时,求y的值.
(1)求∠EAF的度数;
(2)①当∠CAP=20°时,∠1= ,∠2= ;
②当∠CAP=50°时,∠1= ,∠2= ;
③当∠CAP=60°时,∠1= ,∠2= ;
④猜想∠1和∠2的数量关系写出一个等量关系式,并说明理由;
(3)设∠CAP=x°时,∠AEF=y°,
①求y与x的关系式;
②当△ACP为直角三角形时,求y的值.
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718804088987648/2790427216912384/STEM/fce879c9-3d8d-4222-b006-f42ee7935415.png)
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解答题-作图题
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【推荐1】已知
、
.
(1)画出线段
,使A、B刚好是
的三等分点,C、A、B、D依次排列,请直接写出点C坐标 ,点D坐标 ;
(2)平移线段
,使A的对应点
刚好落在x轴上,B的对应点
刚好落在y轴上,在图上画出四边形
,并直接写出该四边形的面积为 ;
(3)在(2)的条件下,若
交y轴于点E,直接写出线段
的长为 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/115a0c87ac14dbb770c95d74d6e26073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49a31f8e8dba418bd5d886998ef8d17.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/2/804e0024-8069-4c77-8bf9-03a0d4f48c1d.png?resizew=255)
(1)画出线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
(2)平移线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
(3)在(2)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13cf3a313649d7b92f28dd9fb8c27e41.png)
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【推荐2】在直角坐标系中,点
,
在
轴正半轴上,且点
在
的下方,将线段
进行平移得到线段
,点
的对应点为点
,点
的对应点为点
,
(1)若点
,
,
,求点
的坐标;
(2)点
是第一象限上的一个动点,过点
作
轴于点
,连接
,
,
.若点
,
,
,
,
的面积是
,点
到直线
的距离是8,试问是否存在
,使得
若存在,请求出
的值;若不存在,请说明理由.
![](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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32366143230ca122894a4bada7c7b96d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27149c9ff20937492950f42084caa019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/245455541ed5c7a2d2b85030b64073f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf783d3172debc69f963495e5bff78d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7692a3cacda055f56135ad7086d6c458.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48c09615735d331befd07664aa47cb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44d61ab1ea6f0b118f6023f81a3f382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd425fc8569ab5ed17d0c9bc7bead2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff39c7aa648afd1080206c8080ff79e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e499a61ac74f5af3de318ea9af138d3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abb29dcfe90136bd4c02fd1fe912abe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解答题-证明题
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【推荐3】如图1,在平面直角坐标系中有一点A(2,2),将点A向左平移3个单位,再向下平移6个单位得到点B,直线l过点A、B,交x轴于点C,交y轴于点D,P是直线l上的一个动点,通过研究发现直线l上所有点的横坐标x与纵坐标y都是二元一次方程2x﹣y=2的解.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/18/5233a3ec-8efe-4124-9544-8d7085ab4b03.png?resizew=547)
(1)直接写出点B,C,D的坐标:B ,C ,D ;
(2)求三角形AOB的面积;
(3)如图2,将D点向左平移m个单位(m>1)到E,连接CE,DG平分∠CDE交CE于点G,已知点F为x轴正半轴上一动点(不与C点重合),射线EF交直线AB交于点M,交直线DG于点N,试探究F点在运动过程中∠DNM、∠CFE、∠CME之间是否有某种确定的数量关系,若存在,请写出对应关系式并证明;若不存在,请说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/18/5233a3ec-8efe-4124-9544-8d7085ab4b03.png?resizew=547)
(1)直接写出点B,C,D的坐标:B ,C ,D ;
(2)求三角形AOB的面积;
(3)如图2,将D点向左平移m个单位(m>1)到E,连接CE,DG平分∠CDE交CE于点G,已知点F为x轴正半轴上一动点(不与C点重合),射线EF交直线AB交于点M,交直线DG于点N,试探究F点在运动过程中∠DNM、∠CFE、∠CME之间是否有某种确定的数量关系,若存在,请写出对应关系式并证明;若不存在,请说明理由.
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