1 . 如图,在
中,
,
分别是
,
的中点.
作
的垂线,垂足为点
,交
于点
(尺规作图,保留痕迹,不写作法);
(2)根据(1)中作图,连接
,若
,求证:四边形
是菱形.
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(2)根据(1)中作图,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d803de8455b9b10eaf9c9d0538835a.png)
您最近一年使用:0次
2024-05-12更新
|
0次组卷
|
3卷引用:2023年湖北省襄阳市老河口市中考一模数学试题
2023年湖北省襄阳市老河口市中考一模数学试题2024年江苏省徐州市沛县第五中学中考数学一模模拟试题(已下线)专题03 尺规作图与一般作图问题(五大热点题型归纳)-2024年中考数学二轮热点题型归纳与变式演练(云南专用)
2 . 如图,
中,
平分
于点D.
(1)请用尺规作图作边
的垂直平分线
(不写作法,保留作图痕迹);
(2)设
与
交于点E,连接
,若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/205e859951a9a0b8e73bc34cd92a7498.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/5/025329bc-5d26-4f22-89d4-50ead6a7b322.png?resizew=200)
(1)请用尺规作图作边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/583302bb3bccf6bb5b24de6f3b0c06bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
2023-05-17更新
|
127次组卷
|
2卷引用:2023年湖北省襄阳市襄城区中考一模数学试题
名校
3 . 仅用无刻度直尺按要求作图,完成些列问题(画图过程用虚线表示,画图结果用实线表示):
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/30/de23868b-5be0-490c-bedb-075d6c1073d0.png?resizew=552)
(1)
中,E为
的中点.M为
上一点,
.
①如图1,过点M画平分
的直线;
②如图2,画
的平分线交
于点F;
(2)
中,E为
的中点.
③如图3,点H在
边上,
,在
上找一点F,使得
;
④如图4,连接
,并画出
的中点N.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/30/de23868b-5be0-490c-bedb-075d6c1073d0.png?resizew=552)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/151f7aef7d0f56e18562f5a4030cf815.png)
①如图1,过点M画平分
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
②如图2,画
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
③如图3,点H在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99e9ed83b88c76dc40d707c28003a43a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa3db14841ce3eca20b8b38448433de5.png)
④如图4,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9171484a68c84cad91e4f2233392f600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9171484a68c84cad91e4f2233392f600.png)
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4 . 网格中,我们把各顶点都在格点上的三角形称为格点三角形.如图是边长为1个单位的小正方形组成的网格,已知△ABC,AB=
,BC=
,AC=2
,请在这个网格中按要求仅用无刻度的直尺作图(保留作图痕迹,不写作法);
(1)画出格点三角形ABC,标上相应字母,并写出△ABC的高AH的长 ;
(2)①画出△ABC的中线AD;
②标出格点E,画线段AE,使AE平分∠BAC.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50690dab38f4512eb72e18b7f86cf6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92cb9a526f2b146415a98051b4e58b42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50690dab38f4512eb72e18b7f86cf6f6.png)
(1)画出格点三角形ABC,标上相应字母,并写出△ABC的高AH的长 ;
(2)①画出△ABC的中线AD;
②标出格点E,画线段AE,使AE平分∠BAC.
![](https://img.xkw.com/dksih/QBM/2021/5/7/2715705648783360/2781594213736448/STEM/ed6ad61c-6dbd-4527-8b02-dc84fff2838f.png)
您最近一年使用:0次
5 . 已知矩形ABCD,请仅用无刻度的直尺按下列要求作图(不写作法)
(1)如图1,点P为CD的中点,画出AB的垂直平分线l.
(2)如图2,在矩形ABCD中,以对角线AC为一边构造一个正方形ACFE,画出EF的中点M.
(1)如图1,点P为CD的中点,画出AB的垂直平分线l.
(2)如图2,在矩形ABCD中,以对角线AC为一边构造一个正方形ACFE,画出EF的中点M.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/30/f7cbf3a7-0abb-4b3e-9a45-aa7d6be4550f.png?resizew=244)
您最近一年使用:0次
2018-05-07更新
|
321次组卷
|
4卷引用:2020年湖北省武汉市青山区武钢实验学校九年级4月模拟数学试题
6 . 【感知】如图①,在
中,
,
是斜边
上的中线,求证:
.
小明的思路如下:证明:如图①,延长
至点
,使
,连结
,
结合图①,补全证明过程;
【拓展】
(1)如图②,在
中,
,
,点
,
分别是
,
的中点,连结
,
,且
,
,则
的长为______ .
(2)如图③,
和
中,
,
,
,点
在边
的延长线上,连结
,若
,
分别是
,
的中点,
,
,则
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c71622531dfa894f21b2da123d020d24.png)
小明的思路如下:证明:如图①,延长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0fa1aa5a7a5bb172ed4603f17c8b2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bd97740e8f35c9c05f8bb53c0f1cb47.png)
【拓展】
(1)如图②,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b2731722026737ed98c7ef0e0842abc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82773737609e65dea3c5c67099f1b10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)如图③,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d212c1709b8e72a055cf1b5381ef64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26813466e2ee49a493881a4384fc8748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.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/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9c3ec174b1ce835cc8737ff6ce57e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2b3247afa684b10c8e1da99cf33d5b.png)
您最近一年使用:0次
7 . 如图,四边形
为平行四边形,E为
的中点,仅用无刻度的直尺作图:
上取点M,使四边形
为平行四边形;
(2)在
的延长线上取一点F,使四边形
为平行四边形;
(3)作过点F的直线平分
的周长和面积;
(4)作
的中点G.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d6bdc69ab38fadcc5bec71174450f3.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2603e4ecdd5d8d2ac4f29a0be5d66324.png)
(3)作过点F的直线平分
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(4)作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
8 . 在证明定理“三角形的中位线平行于第三边,且等于第三边的一半“时,小明给出如下部分证明过程.
已知:在△ABC中,D、E分别是边AB、AC的中点.求证: .
证明:如图,延长DE到点F,使EF=DE,连接CF,
(1)补全求证;
(2)请根据添加的辅助线,写出完整的证明过程;
(3)若CE=3,DE=4,请你直接写出边AB的取值范围.
已知:在△ABC中,D、E分别是边AB、AC的中点.求证: .
证明:如图,延长DE到点F,使EF=DE,连接CF,
(1)补全求证;
(2)请根据添加的辅助线,写出完整的证明过程;
(3)若CE=3,DE=4,请你直接写出边AB的取值范围.
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718551855628288/2790411265671168/STEM/228d60a4bbba464d8862ef790d55aefb.png?resizew=183)
您最近一年使用:0次
9 . 如图是由小正方形组成的
网格,每个小正方形的顶点叫做格点,
,
,
三点是格点,点
在
上,仅用无刻度的直尺在给定网格中完成作图.(作图过程用虚线表示作图结果用实线表示)
(1)在图1中,将线段
沿
方向平移,使点
与点
重合,作出平移后的线段
;
(2)连接
,在线段
上作出点
,使得线段
;
(3)取
中点
,作线段
,且
;
(4)在图2中,连接
,作线段
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13a96e9c2e2a15130d1d56a1d0e16b72.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/5/42b1c458-d278-4c74-9117-5becbf6649f3.png?resizew=473)
(1)在图1中,将线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91d29f913ddbbc8959aab0440c66f109.png)
(3)取
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288c74abe7845c0e48140de8c088a50d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91c399f248ca23d67400bd25e2676016.png)
(4)在图2中,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a57f5b0afd728a05e27fd03d7843796.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59ad83aec7bd98205864ad277841afda.png)
您最近一年使用:0次
真题
名校
10 . 如图,在
中,按以下步骤作图:①分别以点B,C为圆心,大于
的长为半径画弧,两弧相交于E,F两点,
和
交于点O;②以点A为圆心,
长为半径画弧,交
于点D;③分别以点D,C为圆心,大于
的长为半径画弧,两弧相交于点M﹐连接
和
交于点N,连接
若
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d452f74791f58e8400cb8d2d6038dc4.png)
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