如图,在
中,
.
作
边上的高
;(保留作图痕迹,不要求写作法)
(2)应用与计算:在(1)的条件下,
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85fb581e6a89ae40731b8619fff1e173.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(2)应用与计算:在(1)的条件下,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
2023·广东·中考真题 查看更多[14]
2023年广东省中考数学真题(已下线)2023年广东省广州市中考数学真题(已下线)2023年广东省中考数学真题变式题16-19题(已下线)XDRzkgssxzw975河南省南阳市油田2023-2024学年九年级上学期期末考试数学试题福建省福州市第十八中学2023-2024学年九年级下学期开学考试数学试题福建省福州第十九中学2023-2024学年九年级下学期月考数学试题广西南宁市青秀区北大南宁附属实验学校2023-2024年九年级下学期3月数学月考试题2024年广西壮族自治区防城港市中考一模数学模拟试题2024年广西玉林市九年级中考一模数学试题2024年黑龙江省绥化市绥棱县克音河乡学校中考一模数学试题(已下线)热点09 尺规作图(7大题型+满分技巧+限时分层检测)-2024年中考数学【热点·重点·难点】专练(全国通用)2024年广西部分市县区九年级中考一模数学试题2024年宁夏回族自治区石嘴山市惠农区中考模拟数学试题
更新时间:2023-06-27 19:12:46
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解答题-作图题
|
适中
(0.65)
【推荐1】尺规作图:如图,已知
,
,作矩形
,使得点
、
分别在边
、
上,点
、
在边
上,且
(不写作法,保留作图痕迹).
![](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/389bc3f29c058067e06e0d0d2be399da.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c602e55eec0cb7676835fe19a8ccb596.png)
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您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐2】如图,已知
.点
,
分别在
,
上,且满足
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/7/38d3ff87-9021-4fb9-9dd4-770f4318154f.png?resizew=373)
(1)用直尺和圆规确定点
,
;(保留作图痕迹,不写作法)
(2)连接
,
,
与
交于点
.
①求证
;
②若
,
,
,则
的长为________.
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2ddd49625097d0a78df7170be4f882e.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/7/38d3ff87-9021-4fb9-9dd4-770f4318154f.png?resizew=373)
(1)用直尺和圆规确定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
①求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8cdb93870e26271bbbd43f1c56bfb07.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
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解答题-证明题
|
适中
(0.65)
【推荐1】已知等腰
中,
,点
从点
出发在线段
移动,以
为腰作等腰
,
,连接
.
![](https://img.xkw.com/dksih/QBM/2019/12/27/2364201206947840/2367086067769344/STEM/00415276-1139-4f8b-8e26-2c47559057b3.png)
(1)如图,求证:
≌
;
(2)求证:
;
(3)若
,试问:
的面积有没有最大值,如没有请说明理由,如有请求出最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa8cee7d2463f6f7d352e8b65f47cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/178a27068cf5517ad64f211af10256ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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![](https://img.xkw.com/dksih/QBM/2019/12/27/2364201206947840/2367086067769344/STEM/00415276-1139-4f8b-8e26-2c47559057b3.png)
(1)如图,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b33c2aa4cb5a3b8da3b188ab6a21520c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db5e1441a49e782ff0ef46e776cde06a.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc76802bdb52ea5ffd28af82d11d2c47.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bd3b58d32346a8d31bc90adc67d37b3.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,AB是⊙O的直径,弦EF⊥AB于点C,点D是AB延长线上一点,∠A=30°,∠D=30°.
![](https://img.xkw.com/dksih/QBM/2020/1/21/2381687244767232/2381952791707648/STEM/6047819325064a2fadeb592694fea01c.png?resizew=196)
(1)求证:FD是⊙O的切线;
(2)取BE的中点M,连接MF,若MF
,求⊙O的半径.
![](https://img.xkw.com/dksih/QBM/2020/1/21/2381687244767232/2381952791707648/STEM/6047819325064a2fadeb592694fea01c.png?resizew=196)
(1)求证:FD是⊙O的切线;
(2)取BE的中点M,连接MF,若MF
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c154be32bfa30e4c463c6085b0c8912.png)
您最近一年使用:0次