如图,在矩形
中,
,点E是
边上一动点(点E不与A,D重合),连接
,以
为边在直线
的右侧作矩形
,使得矩形
矩形
交直线
于点H.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/16/3b6fee07-d796-416d-b1cf-91869324f9e3.png?resizew=156)
【尝试初探】
(1)在点E的运动过程中,
与
始终保持相似关系,请说明理由;
【深入探究】
(2)随着E点位置的变化,H点的位置也随之发生变化,当B,C,G共线时,连接
,求
的数量关系;
【拓展延伸】
(3)连接
,当
的长度为
时,求
的最小值(用含n和
的代数式表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c2dfe278dcbb58b0c5c2cbebafab27.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/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e279ad372652147be73c8a834734df0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/879d9553767b2892b202425604fa0ca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0886a467e0a6c5b9a32b99bb4639e46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/16/3b6fee07-d796-416d-b1cf-91869324f9e3.png?resizew=156)
【尝试初探】
(1)在点E的运动过程中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4ce3f962c91f0d3c7b998b5fbb37b5.png)
【深入探究】
(2)随着E点位置的变化,H点的位置也随之发生变化,当B,C,G共线时,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a04ef4a57e2fc46eec19fda396cdd6.png)
【拓展延伸】
(3)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0cf7c4cde3d35712af6dfc566929f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2023-03-13 20:07:50
|
相似题推荐
解答题-作图题
|
适中
(0.65)
【推荐1】(1)在方格纸中画出
绕点B顺时针方向旋转
后的
;
(2)已知点
,
,根据这两点建立平面直角坐标系,并写出点
的坐标和点C运动到点
经过的路径长.
![](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/d9cf39c4552ecb2b659f052dc5c0f5eb.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a6d861cf80bd971be02918cfa58cb76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/b6719518-1abf-4581-8788-6fedfa2c3bd7.png?resizew=181)
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解答题-计算题
|
适中
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名校
【推荐2】利用完全平方公式进行因式分解,是我们常用的一种公式法,我们有些时候也会应用完全平方公式进行二次根式的因式分解.
例如:
;仿照例子完成下面的问题
参考例题要把结果进行化简
.
,求
的值;
(2)如图,
中,
,
,点
为
上的点,满足
,求
的长.
例如:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b3e63db0849aa7be3b452217cafb3a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04bdba16bfb266533f8d4d953ddf2641.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9142db4dd2ef151bf3d4a63afb61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81131259f548e8803da8dec25fb644c.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/89c41757ae282475fb29ec1e8e02045d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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解答题-证明题
|
适中
(0.65)
【推荐1】在平面直角坐标系中,点A的坐标为(0,3),直线AB
x轴,在矩形OCDE中,OC=4,OE=3,以点C在第一象限内直线AB上时为初始位置,将矩形OCDE以点O为中心逆时针旋转,旋转角为α.直线OC,直线DE分别与直线AB相交于点M,N.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/7/39759c2e-aa06-4b16-adab-06b567285333.png?resizew=167)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/7/876dea86-8f17-47b1-a68b-40c2a20bc42f.png?resizew=148)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/7/3325e340-988d-4f01-a1e7-358c0f8ca24f.png?resizew=154)
(1)如图1,当顶点D落在直线AB上时(此时点N与点D重合).
①求证:△MAO≌△MCD;
②求点M的横坐标;
(2)如图2,当顶点D落在y轴正半轴上时,请直接写出点M的横坐标;
(3)在矩形OCDE旋转过程中,当0°<α<90°时,若AN=3AM,请直接写出此时点M的横坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/7/39759c2e-aa06-4b16-adab-06b567285333.png?resizew=167)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/7/876dea86-8f17-47b1-a68b-40c2a20bc42f.png?resizew=148)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/7/3325e340-988d-4f01-a1e7-358c0f8ca24f.png?resizew=154)
(1)如图1,当顶点D落在直线AB上时(此时点N与点D重合).
①求证:△MAO≌△MCD;
②求点M的横坐标;
(2)如图2,当顶点D落在y轴正半轴上时,请直接写出点M的横坐标;
(3)在矩形OCDE旋转过程中,当0°<α<90°时,若AN=3AM,请直接写出此时点M的横坐标.
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解答题-问答题
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【推荐2】如图,为某公园“水上滑梯”的侧面图,其中BC段可看成是一段双曲线,建立如图的坐标系后,其中,矩形AOEB为向上攀爬的梯子,OA=5米,进口
,且AB=2米,出口C点距水面的距离CD为1米,B、C之间的水平距离DE的长度为多少米?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fc37032a5ed6d03ad6f28e9d0b513d5.png)
![](https://img.xkw.com/dksih/QBM/2020/12/7/2608919081033728/2613852643680256/STEM/922c41ebcfbe4a14ac99b441f60e2be2.png?resizew=191)
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解答题-问答题
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名校
【推荐3】小明在学完了平行四边形这个章节后,想对“四边形的不稳定性”和“四边形的判定”有更好的理解,做了如下的探究:他将
个木棍和一些钉子组成了一个正方形
和平行四边形
(如图
),且
,
在一条直线上,点
落在边
上.经小明测量,发现此时
、
、
三个点在一条直线上,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/21/7bd7bfb6-9ae7-47b0-a552-b41f9d55463d.png?resizew=396)
(1)求此时
的长度;
(2)设
的长度为
,
______(用含
的代数式表示);
(3)小明接着探究,在保证
、
位置不变的前提条件下,从点
向右推动正方形,直到四边形
刚好变为矩形时停止推动(如图2).若此时
,求
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e82db9beb42a2d9249c78bce5be13613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a16f5621716bfef7a056a3f2712feb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f823053e8f9c9e659a21ee0c5c6adfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0144935b9c80f0364fab762a913a9cf7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/21/7bd7bfb6-9ae7-47b0-a552-b41f9d55463d.png?resizew=396)
(1)求此时
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5277fa450a0c513a86a74420f8ee99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)小明接着探究,在保证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62b07dd12e3e535b9293e7cf93a9107.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
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解答题-作图题
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适中
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名校
【推荐1】如图1,
的面积为6,点
和
分别为线段
和
的中点,连接
.点
为线段
上的动点,点
从点
出发,运动到点
停止,连接
、
.设
(
),点
到线段
的距离为
.
与
的函数关系式;
(2)下表列出了部分对应的自变量和函数值,请直接写出
的值为______,并在图2中画出此函数的图象;
(3)结合图像,指出当
取得最小值时,
的值是______;并写出整个运动过程中,点
总路程的最大值为______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa41f80c6e33393a9f7bb57fca6b493.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fc51ea1d0d78b3defcd147ef214f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)下表列出了部分对应的自变量和函数值,请直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
… | 1 | 2 | 3 | 4 | 5 | 6 | … | |
… | 6 | 3 | 2 | 1.2 | 1 | … |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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解答题-证明题
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解题方法
【推荐2】如图1,在△ABC中,I是内心,AB=AC,O是AB边上一点,以点O为圆心,OB为半径的⊙O经过点I.
(1)求证:AI是⊙O的切线;
(2)如图2,连接CI交AB于点E,交⊙O于点F,若tan∠IBC=
,求
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/14/08f65232-ff09-471d-9e4c-ce2c961fa691.jpg?resizew=349)
(1)求证:AI是⊙O的切线;
(2)如图2,连接CI交AB于点E,交⊙O于点F,若tan∠IBC=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1a2a3ca97740b27193a7289833819ee.png)
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