如图,在
中,
,
,点
在
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/7/f6b33e29-bec9-46e6-bc55-03d72ae9b1e7.png?resizew=181)
(1)尺规作图:把
绕点
逆时针旋转得到
,求作点
的对应点
;(不写过程,保留作图痕迹)
(2)若
,求点
到直线
的距离.
![](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/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/7/f6b33e29-bec9-46e6-bc55-03d72ae9b1e7.png?resizew=181)
(1)尺规作图:把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7af51564ad769756ddda5ff0c7f07408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d10f2db7289ff1ec65c47d9af77a9c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
更新时间:2023-04-06 16:26:20
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图,点P是线段AB上的一点.请在图中完成下列操作.
![](https://img.xkw.com/dksih/QBM/2016/2/19/1573973027053568/1573973033541632/STEM/7b919a53644340cea42615ac3b161e3c.png)
(1)过点P画BC的平行线,交线段AC于点M;
(2)过点P画BC的垂线,垂足为H;
(3)过点P画AB的垂线,交BC于Q;
(4)线段 的长度是点P到直线BC的距离.
![](https://img.xkw.com/dksih/QBM/2016/2/19/1573973027053568/1573973033541632/STEM/7b919a53644340cea42615ac3b161e3c.png)
(1)过点P画BC的平行线,交线段AC于点M;
(2)过点P画BC的垂线,垂足为H;
(3)过点P画AB的垂线,交BC于Q;
(4)线段 的长度是点P到直线BC的距离.
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解答题-证明题
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适中
(0.65)
【推荐2】如图,正方形
的边长为
,对角线
相交于点
,
是
的中点,连接
,过点
作
于点
,交
于点
.
(1)求证:
;
(2)求点
到
边的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3c032441543354c154ee67d744abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd7e284eac4b90bfb327de768a7beef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e444739e269a94733b2b0598b559313.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/23/9572abe0-7bf6-43f6-9246-a495b1a26713.png?resizew=146)
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解答题-证明题
|
适中
(0.65)
【推荐2】(1)观察发现:如图(1),分别以△ABC三边为直角边向AB的同侧作等腰直角三角形:△ABD、△BCE、△ACF.连结EF、DE,AF与DE的交点为G.
①证明:△ADG≌△FEG;
②直接写出
、
、
之间的关系.
(2)拓展运用:已知:如图(2),在△ABC中,BC=10,BC上的高等于2.将线段AB绕点B顺时针旋转90°得到线段BD,将线段AC绕点C逆时针旋转90°得到线段CE,连结DE,求四边形BDEC的面积S四边形BDEC.
①证明:△ADG≌△FEG;
②直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b270ee195ba8ed6874e4866f9083c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d973daf6f3b118809a11c3a3f4cf0dd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/486fe5a3be2a578ad3570555b129776c.png)
(2)拓展运用:已知:如图(2),在△ABC中,BC=10,BC上的高等于2.将线段AB绕点B顺时针旋转90°得到线段BD,将线段AC绕点C逆时针旋转90°得到线段CE,连结DE,求四边形BDEC的面积S四边形BDEC.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/23/fcb90d7e-1b98-4006-9418-57abd77ea3fe.png?resizew=390)
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解答题-作图题
|
适中
(0.65)
【推荐1】如图,在边长为
的小正方形组成的网格中,
的三个顶点均在格点上,点
、
的坐标分别是
,
.
![](https://img.xkw.com/dksih/QBM/2017/10/12/1793530478772224/1795096711405568/STEM/2485af991e384dab8116aba21cc135b9.png?resizew=209)
(
)画出
绕点
逆时针旋转
后得到
.
(
)点
关于点
中心对称的点
的坐标为__________.
(
)连接
、
,四边形
的面积是__________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.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/e34e077ac999f674da98ba5011914a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36bcabae3067c42e14b62136a9f79415.png)
![](https://img.xkw.com/dksih/QBM/2017/10/12/1793530478772224/1795096711405568/STEM/2485af991e384dab8116aba21cc135b9.png?resizew=209)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe639eab78eafd2d40ea70aa5d3f21d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a21e44af368f3336354704d92609f9b.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4cfbcf4ecbca8f964985f4a2d3700ee.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943712a5e96b16cc15d775cc4687237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12daf5fea89631b84f896939c503d88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c2fede77a92868b20a768046a4c4514.png)
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解答题-作图题
|
适中
(0.65)
名校
【推荐2】在如图的网格中建立平面直角坐标系,其中A(2,0),B(4,0),C(6,3),H(4,4)仅用无刻度的直尺在给定网格中完成画图,画图过程用虚线表示.
![](https://img.xkw.com/dksih/QBM/2022/4/4/2951148648333312/2951879082049536/STEM/5335189e-d96d-4a66-91ea-53b0c3bd202e.png?resizew=205)
(1)将ΔABC绕点H逆时针旋转90°,画出旋转后的ΔA1B1C1;
(2)画出∠BAC的角平分线AD;
(3)在线段AC上画点P,使得AP=AB
(4)若
轴上一点E,满足BE⊥AC,请直接写出点E的坐标
![](https://img.xkw.com/dksih/QBM/2022/4/4/2951148648333312/2951879082049536/STEM/5335189e-d96d-4a66-91ea-53b0c3bd202e.png?resizew=205)
(1)将ΔABC绕点H逆时针旋转90°,画出旋转后的ΔA1B1C1;
(2)画出∠BAC的角平分线AD;
(3)在线段AC上画点P,使得AP=AB
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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解答题-证明题
|
适中
(0.65)
【推荐1】【模型】如图1,已知
和
均为等腰直角三角形,
,点
为
的中点.过点
与
平行的直线交射线
于点
,则点
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/d54ff5ea-7116-4432-ae26-c52b30c76888.png?resizew=480)
【拓展】
(1)如图2,将图1中
绕点
旋转,当
,
,
三点在同一直线上时,求证:
为等腰直角三角形.
【迁移】
(2)如图3,将图1中
绕点
旋转,当
,
,
三点不在同一直线上时,(2)中的结论是否仍然成立?若成立,请证明;若不成立,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2036191be2322003aaee6bb411868327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43503bfc6f75d8e968eb5eb034a2db58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1165830b314a0dab65ea267e82bd3f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4cb4069a2e1e90d1a9c4979ad09ca2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/d54ff5ea-7116-4432-ae26-c52b30c76888.png?resizew=480)
【拓展】
(1)如图2,将图1中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99db03404e48d64e11ad9e953e874ed.png)
【迁移】
(2)如图3,将图1中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
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解答题-证明题
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适中
(0.65)
名校
【推荐2】如图,
是等边三角形
内一点,将线段
绕点
顺时针旋转
,得到线段
,连接
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/13/50d0ddbd-534d-4b03-80ac-a26e7d25cbb6.png?resizew=158)
(1)求证:
;
(2)连接
,若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/13/50d0ddbd-534d-4b03-80ac-a26e7d25cbb6.png?resizew=158)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43f7e77d3a025e0d317bc086becf8eb3.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c8be8daf53e98843ff4e9932fc3c40e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3de20ba8bda63c650ef571be155702.png)
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