如图,在
中,
,点
在
边上且点
到点
的距离与点
到点
的距离相等.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/20/2fd0d9fc-146b-48a5-937a-f38227ebf812.png?resizew=90)
(1)利用尺规作图作出点D,不写作法但保留作图痕迹;
(2)连接
,若
的底边长为3,周长为17,求
的周长.
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/20/2fd0d9fc-146b-48a5-937a-f38227ebf812.png?resizew=90)
(1)利用尺规作图作出点D,不写作法但保留作图痕迹;
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
更新时间:2024-03-21 08:26:35
|
相似题推荐
解答题-作图题
|
较易
(0.85)
名校
【推荐1】如图,解答下列问题∶
(1)写出
三点的坐标.
(2)若
各顶点的纵坐标不变,横坐标都乘
,请你在同一坐标系中描出对应的点
,并依次连接这三个点,所得的
与
有怎样的位置关系?
(3)找一点
,使得点
到
两点距离相等且直线
垂直于
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/a151a0a1-adfa-4edf-92e4-42974f7bdd5b.png?resizew=240)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d100e7830d2e9d27bdccb181c79b65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(3)找一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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解答题-作图题
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【推荐2】作图题:(不写作法,但必须保留作图痕迹)
如图:某地有两所大学和两条相交叉的公路,(点
,
表示大学,
,
表示公路).现计划修建一座物资仓库,希望仓库到两所大学的距离相等,到两条公路的距离也相等.你能确定仓库
应该建在什么位置吗?在所给的图形中画出你的设计方案.
如图:某地有两所大学和两条相交叉的公路,(点
![](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/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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解答题-作图题
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【推荐1】如图,在
中,
平分
交
于点
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/10/d4983e31-edc7-40a4-a419-315dbd743ba2.png?resizew=196)
(1)请用无刻度的直尺和圆规作出线段
的垂直平分线;(要求:不写作法,保留作图痕迹,使用2B铅笔作图)
(2)记(1)中所作
的垂直平分线交
于点E,交
于点
,连接
.求
的度数.
![](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/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32436704a722d5e568ff5c175bf3c662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca5371e180aad1d6352b0878ee37c0a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/10/d4983e31-edc7-40a4-a419-315dbd743ba2.png?resizew=196)
(1)请用无刻度的直尺和圆规作出线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)记(1)中所作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e7106619c08f2bcc1d21f846e8a0de.png)
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解答题-作图题
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【推荐2】如图,
中,BD为对角线.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/10/4f6be601-62f5-46d9-b0d5-964ecb621a19.png?resizew=167)
(1)尺规作图:作BD的垂直平分线交AB于点F,交CD于点E,与AB交于点F;(不写做法和证明,保留作图痕迹)
(2)在(1)中所作的图中,连接BE,求证:BD平分
.
证明:∵![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
∴___________.
∵
,
∵EF垂直平分BD,
∴___________.(___________)
∴
,
∴___________.
∴BD平分
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/10/4f6be601-62f5-46d9-b0d5-964ecb621a19.png?resizew=167)
(1)尺规作图:作BD的垂直平分线交AB于点F,交CD于点E,与AB交于点F;(不写做法和证明,保留作图痕迹)
(2)在(1)中所作的图中,连接BE,求证:BD平分
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfc2771aa0d5b97d2297f8a26a6f6b1.png)
证明:∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
∴___________.
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b692789c13d18e12a20fd899faccf3d.png)
∵EF垂直平分BD,
∴___________.(___________)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f79fe1e46a0f41daa8b0a91428a472e9.png)
∴___________.
∴BD平分
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfc2771aa0d5b97d2297f8a26a6f6b1.png)
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