综合与实践
问题背景:
如图1,在四边形ABCD中,AB=5,BC=4,AD⊥CD,连接AC,AC⊥BC,过点C作CE⊥AB于点E,且CE=CD.
(1)求证:AD=AE.
操作探究:
如图2,将△ACD沿直线AB方向向右平移一定距离,点A,C,D的对应点分别为点
,
,
,且点
与点E重合.
(2)①连接
,试判断四边形
的形状,并说明理由;
②求出△ACD平移的距离.
(3)若将△ACD继续沿直线AB方向向右平移,当点
恰好落在BC边上时,请在图1中画出平移后的图形,并求出继续平移的距离。
拓展创新:
如图3,在(2)的条件下,将
绕点E按顺时针方向旋转一定角度,在旋转的过程中,记直线
分别与边AB,BC交于点N,M.
(4)当
时,请直接写出BN的长.
问题背景:
如图1,在四边形ABCD中,AB=5,BC=4,AD⊥CD,连接AC,AC⊥BC,过点C作CE⊥AB于点E,且CE=CD.
(1)求证:AD=AE.
操作探究:
如图2,将△ACD沿直线AB方向向右平移一定距离,点A,C,D的对应点分别为点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
(2)①连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b25f3ea33cc08b1e2a0d9c3a9dccaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e33d53d6c60a069de0c42ebcf5cb87ee.png)
②求出△ACD平移的距离.
(3)若将△ACD继续沿直线AB方向向右平移,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
拓展创新:
如图3,在(2)的条件下,将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec75f5ccd5756d5b787c061c831dffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d42170c7d4249f6b390823606c18c9.png)
(4)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f952f849c109b36ae16d4b2a23aa930.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/30/c6ca80ab-86c5-4ebd-830e-c32d5b007c07.png?resizew=601)
2022·山西临汾·二模 查看更多[2]
更新时间:2022-05-07 18:50:34
|
相似题推荐
解答题-证明题
|
适中
(0.65)
【推荐1】已知:正方形
的边长为4,E是边
上的一个动点,过点D作
,交
的延长线于点F,
交对角线
于点M,
交
于点N.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/3d52259b-01e0-411a-b3ec-684a8e9344e4.png?resizew=178)
(1)求证:
;
(2)求证:
;
(3)随着点E在边
上的运动,
的值是否变化?若不变,请求出
的值;若变化,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c175c239742c7ba8fd67a6d5f99cb1b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/3d52259b-01e0-411a-b3ec-684a8e9344e4.png?resizew=178)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a42c17fe4d91d67c1fa43f966bffd891.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4639763cccf677ac08fbbd59e1c8f8da.png)
(3)随着点E在边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868510ade0c627ae7508afe6c153d2b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868510ade0c627ae7508afe6c153d2b4.png)
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解答题-证明题
|
适中
(0.65)
【推荐2】如图,在
中,
,将
绕点
沿顺时针旋转得到
,
与
交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/15/fc5260b6-536f-4f3e-9a35-b39a04184338.png?resizew=150)
(1)求证:
;
(2)若
,
,当四边形
是平行四边形时,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab41054fa9ce51b68e78d9c0cf398d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b41d4070854edfaa24071137b314cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/15/fc5260b6-536f-4f3e-9a35-b39a04184338.png?resizew=150)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/847057c81ca11400fa2c9d30837c6884.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a9fa8832f98b5418a7d75892f7951b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06c5ce0798aaf6c19411f4a3d9dc42a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd2e75f86ff8b8fac951bed8a6da258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9171484a68c84cad91e4f2233392f600.png)
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解答题-作图题
|
适中
(0.65)
【推荐1】如图,在平面直角坐标系中,
,
,
.
中任意一点
经平移后对应点为
,将三角形
作同样的平移得到三角形
.画出平移后的三角形
,写出
、
、
的坐标:
______,
______,
______;
(2)直接写线段
与x轴交点D的坐标______;
(3)若将线段
沿水平方向平移一次,再竖直方向平移一次,两次平移扫过的图形没有重叠部分.两次平移后点B的对应点
的坐标为
,已知线段
扫过的面积为20,请直接写出a,b的数量关系:______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ee2b670f75ffbc26f977e8618f37de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918cc3fd7121361e9535df9242b14d4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/577a4048681c2a12f18182f53248bf9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbec8b46231e412ddce55cc96634e182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639e76ee3263499dabfdf8c63f0de1e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1264a2e3609e1c274acb89b5ea5019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1264a2e3609e1c274acb89b5ea5019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
(2)直接写线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(3)若将线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9362f7a7911429349df9ae90591db47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbaafe72e57bb7d6683c9cd35662c23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
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解答题-问答题
|
适中
(0.65)
【推荐2】如图1,将抛物线P1:y1=
x2﹣3右移m个单位长度得到新抛物线P2:y2=a(x+h)2+k,抛物线P1与x轴交于A、B两点,与y轴交于点C,抛物线P2与x轴交于A1,B1两点,与y轴交于点C1.
(1)当m=1时,a= ,h= ,k= ;
(2)在(1)的条件下,当y1<y2<0时,求x的取值范围;
(3)如图2,过点C1作y轴的垂线,分别交抛物线P1,P2于D、E两点,当四边形A1DEB是矩形时,求m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
(1)当m=1时,a= ,h= ,k= ;
(2)在(1)的条件下,当y1<y2<0时,求x的取值范围;
(3)如图2,过点C1作y轴的垂线,分别交抛物线P1,P2于D、E两点,当四边形A1DEB是矩形时,求m的值.
![](https://img.xkw.com/dksih/QBM/2019/5/22/2208988937879552/2212217448333312/STEM/01b11c1a04d64e869259cf4d58c49677.png?resizew=336)
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解答题-问答题
|
适中
(0.65)
【推荐1】如图,
是等边三角形,
旋转后能与
重合.
![](https://img.xkw.com/dksih/QBM/2019/7/5/2240337549131776/2240378484817920/STEM/9e634094f7c6461fb632f92e73560fdd.png?resizew=162)
(1)旋转中心是哪一点?
(2)旋转角度是多少度?
(3)连结
后,
是什么三角形?简单说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2694c32ca1e120e988012b7ecd74f625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfff102798f28c72addc26039b90fe7.png)
![](https://img.xkw.com/dksih/QBM/2019/7/5/2240337549131776/2240378484817920/STEM/9e634094f7c6461fb632f92e73560fdd.png?resizew=162)
(1)旋转中心是哪一点?
(2)旋转角度是多少度?
(3)连结
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a99e1ad0d6fb0f13be56d09086366c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a29da7e8d843cca3aa206ff1b3bcc2.png)
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解答题-问答题
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名校
【推荐2】如图,△ABC中,∠ACB=70°,将△ABC绕点B按逆时针方向旋转得到△BDE(点D与点A是对应点,点E与点CAB是对应点),且边DE恰好经过点C,求∠ABD的度数.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/21/22df8926-2306-469f-a07e-72f6bca794d5.png?resizew=158)
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解答题-问答题
|
适中
(0.65)
真题
名校
【推荐1】在矩形
中,
,
,点
在边
上,将射线
绕点
逆时针旋转90°,交
延长线于点
,以线段
,
为邻边作矩形
.
(1)如图1,连接
,求
的度数和
的值;
(2)如图2,当点
在射线
上时,求线段
的长;
(3)如图3,当
时,在平面内有一动点
,满足
,连接
,
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d4746df85049d1651d3f6c30212a7a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d0e8404f347a0eb4c76f4d25d9bdac.png)
(1)如图1,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a72dfbf0138a611174c36ce077e0c47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/126bf434f4ad1f39d97ffa99151543b3.png)
(2)如图2,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(3)如图3,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcc1a8e1de618493faf62d1e75638a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/779ca1cd8f6e0b17042f6b420a687243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51a8d10345f567e0f2daf18529d42f0.png)
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解答题-证明题
|
适中
(0.65)
【推荐2】(1)把两个含有
角的直角三角板如图(1)放置,点
在
上,连接
、
,
的延长线交
于点
.求证:
;
![](https://img.xkw.com/dksih/QBM/2019/12/13/2354132364591104/2354201425690624/STEM/21f635c321b3447fafb89e333c256193.png?resizew=270)
(2)把两个含有
角的直角三角板如图(2)放置,点
在
上,连接
、
,
的延长线交
于点
.问
与
是否垂直?并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/187ed13a7bd532bd39af5e5ad7493a2c.png)
![](https://img.xkw.com/dksih/QBM/2019/12/13/2354132364591104/2354201425690624/STEM/21f635c321b3447fafb89e333c256193.png?resizew=270)
(2)把两个含有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
您最近一年使用:0次