如图,在直角坐标系中,先描出点
,点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3326927e4b01e981a19109633141e06a.png)
(1)用尺规在x轴上找一点C,使
的值最小(保留作图痕迹);
(2)用尺规在x轴上找一点P,使
(保留作图痕迹).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ca979687ffb2214e747525635a6912c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3326927e4b01e981a19109633141e06a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/19/2052d47a-b222-416b-933b-a85cb68403fe.png?resizew=258)
(1)用尺规在x轴上找一点C,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab15f71acf24a48b4ea4efac5f09b718.png)
(2)用尺规在x轴上找一点P,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e4d19bf237a6fca67e0d01a9ddb726.png)
2018·河北衡水·一模 查看更多[5]
2018年河北衡水第二初级中学中考数学模拟试卷(一)(已下线)学科网2018年5月2018届九年级第三次模拟大联考(河北)数学试题【全国市级联考】广东省广州市2018年中考数学模拟试卷(五)【全国市级联考】福建省龙岩市2018年中考数学模拟试卷(4月份)吉林省四平市第三中学校2022-2023学年八年级下学期开学考试数学试题
更新时间:2018-04-16 16:57:17
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解答题-问答题
|
适中
(0.65)
真题
【推荐1】如图,在
中,
,分别以点A、C为圆心,大于
长为半径画弧,两弧相交于点M、N,连接MN,与AC、BC分别交于点D、E,连接AE.
![](https://img.xkw.com/dksih/QBM/2014/7/31/1573742299308032/1573742305394688/STEM/3bea5c2e-9f4e-4d7d-afad-5173ee92f09f.png?resizew=227)
(1)求
;(直接写出结果)
(2)当AB=3,AC=5时,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9142db4dd2ef151bf3d4a63afb61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93148adbc6e856da9a9d263f485d003.png)
![](https://img.xkw.com/dksih/QBM/2014/7/31/1573742299308032/1573742305394688/STEM/3bea5c2e-9f4e-4d7d-afad-5173ee92f09f.png?resizew=227)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23dc2d2dd56fcc67698c45a6e0e48f80.png)
(2)当AB=3,AC=5时,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
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
是
的一条弦,请用尺规作图法找出
的中点
.(保留作图痕迹,不写作法)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/2020/2/8/2394802730754048/2395859633741825/STEM/0b7cda359af34126a04cb6bd7389e47f.png?resizew=113)
您最近一年使用:0次