青岛西海岸新区将举行马拉松挑战赛,规划在如图区域设置一个能量补给站,用点
表示,使其到赛道
段和到赛道
段的距离相等,同时要求该能量补给站到观测点
和到观测点
的距离也相等,请在图中做出补给站点
的位置.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/2018/2/12/1880581694791680/1881514584801280/STEM/87abd01eb6384bb8bd6b42f85bf2e790.png?resizew=141)
更新时间:2018-02-13 16:54:07
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相似题推荐
解答题-作图题
|
适中
(0.65)
【推荐1】已知:
,请按要求完成下列作图.(要求:尺规作图,保留作图痕迹,可作必要文字说明)
,使得
与边
相切且过点
;
(2)在图②中作一点
,使得点
到
的距离是到
的距离的
倍.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1d9218917d85a1dc19e60f076b8bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1d9218917d85a1dc19e60f076b8bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f47ddc7c9fb41942160e3cafcf756776.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)在图②中作一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
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解答题-作图题
|
适中
(0.65)
【推荐2】如图,在6×6的正方形方格纸中,
的顶点在格点上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/11/85e58e08-6699-4fa4-aa64-9526da428c3a.png?resizew=156)
(1)直接写出
______.
(2)仅用直尺,画出
的平分线
,并写出
______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/11/85e58e08-6699-4fa4-aa64-9526da428c3a.png?resizew=156)
(1)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa59cdfe8777f4b67bf5313f0053401.png)
(2)仅用直尺,画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829ba2daa53d9c59454ba695ea614340.png)
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解答题-作图题
|
适中
(0.65)
【推荐1】如图,
为等边三角形,点D在
边上.
(1)在
内部求作点E,使得
是以
为底边的等腰直角三角形;(尺规作图,保留作图痕迹,不写作法)
(2)在(1)的条件下,连接
延长
交
于点F,若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/10/243ac045-3262-4e6b-b88d-2db9b7b01381.png?resizew=141)
(1)在
![](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/03902478df1a55bc99703210bccab910.png)
(2)在(1)的条件下,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40d4231b6bc803c53ccd9b63ce22c1fe.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/686171942bd7698035016c732db43b63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34323137ddb894a70d97511aa5fe6f98.png)
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解答题-作图题
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适中
(0.65)
解题方法
【推荐2】已知:如图1,在△ABC中,AB=4,BC=5,AC=3.
(1)尺规作图:作BC边上的高AD,不用写做法,保留作图痕迹;
(2)求BC边上的高AD;
(3)以图1中的点B为坐标原点O,BC的长为5个单位长度,以BC所在直线为x轴建立平面直角坐标系,如图2,动点P从点O出发,沿着OC方向向右运动,速度为每秒1个单位,设运动时间为t秒,当△ACP为等腰三角形时,求t的值,并写出点P的坐标.
(1)尺规作图:作BC边上的高AD,不用写做法,保留作图痕迹;
(2)求BC边上的高AD;
(3)以图1中的点B为坐标原点O,BC的长为5个单位长度,以BC所在直线为x轴建立平面直角坐标系,如图2,动点P从点O出发,沿着OC方向向右运动,速度为每秒1个单位,设运动时间为t秒,当△ACP为等腰三角形时,求t的值,并写出点P的坐标.
![](https://img.xkw.com/dksih/QBM/2021/3/21/2682779341848576/2683609875881984/STEM/3aedcdcf-9deb-452f-89df-1647002b01b5.png?resizew=343)
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