如图,已知四边形
是平行四边形.
的平分线交
于点
;(保留作图痕迹,不用写作法)
(2)在(1)中,若
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)在(1)中,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267ace52b64e1e7dfc5211e033255b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72f7d9f5e71bfef8188b1216c1276c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
2023·广西柳州·二模 查看更多[9]
2023年广西柳州市柳南区中考二模数学试题广西壮族自治区南宁市青秀区天桃实验学校2022-2023学年九年级下学期5月月考数学试题广西壮族自治区南宁市江南区2022-2023学年八年级下学期期末数学试题(已下线)专题16 作图与图形变换-学易金卷:5年(2019-2023)中考1年模拟数学真题分项汇编(全国通用)广西壮族自治区南宁市良庆区银海三雅学校2023-2024学年八年级下学期3月月考数学试题重庆市求精中学校2023-2024学年八年级下学期期中数学试题广东省汕头市潮阳区部分学校2023-2024学年八年级下学期期中数学试题2023学年广西壮族自治区柳州地区民族高中九年级下学期5月数学模拟预测题广东省广州市执信中学2023-2024学年八年级下学期期中数学试题
更新时间:2023-06-01 08:24:14
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解答题-作图题
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【推荐1】如图,AO,OB是两条笔直的交叉公路,M,N是两个村庄,现准备建一个联通信号塔,要求信号塔到两个村庄的距离相等,并且到两条公路的距离也相等,同时在∠AOB所在区域内.则信号塔应修在什么位置?在图中标出塔的位置(保留作图痕迹).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/18/8f593424-1888-4bed-8435-f0665bedd729.png?resizew=176)
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【推荐2】如图,已知
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/27/a976f959-1b9c-4f44-bd4b-a2dba8871a08.png?resizew=169)
(1)画中线
;
(2)画
的高
及
的角平分线
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854f480c60b88b546cb15d3b5622e212.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/27/a976f959-1b9c-4f44-bd4b-a2dba8871a08.png?resizew=169)
(1)画中线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)画
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d16a4959a99193a52d6fa8648cb2eb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8134b1163ca3cd2e34ff17fc81078c3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
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解答题-作图题
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【推荐3】已知:如图,线段
和射线
交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/9bfbae4d-0019-4c17-8070-111956aa72b4.png?resizew=189)
(1)利用尺规完成以下作图,并保留作图痕迹.(不要求写作法)
①在射线
上求作一点
,使得点A在线段
的垂直平分线上.
②在线段
上求作一点
,使点
到
,
的距离相等;
(2)上述尺规作图的主要依据是(用定理作答):
①的依据:_____________________________________________________;
②的依据:_____________________________________________________;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/9bfbae4d-0019-4c17-8070-111956aa72b4.png?resizew=189)
(1)利用尺规完成以下作图,并保留作图痕迹.(不要求写作法)
①在射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
②在线段
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)上述尺规作图的主要依据是(用定理作答):
①的依据:_____________________________________________________;
②的依据:_____________________________________________________;
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解答题-问答题
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【推荐1】如图:梯形
中,
,
,
,点
、
分别从点
、
同时出发,点
以
的速度由点
向点
运动,点
以
的速度由点
向点
运动.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/25/04662fb1-2318-420f-a31d-301506b939f3.png?resizew=169)
(1)运动几
时,四边形
是平行四边形?
(2)运动几
时,四边形
是平行四边形?
(3)运动几
时,四边形
和四边形
的面积相等?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b22aaf1bc4a7b0348e2584a4b2589fdf.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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(1)运动几
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56539deb1f0bfac0f566c6fc4c1b9bab.png)
(2)运动几
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c3f8dbbcca5c53e6d2afd1979e916f.png)
(3)运动几
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d65502a7ea4d1ce6d6d8c720845c73e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56539deb1f0bfac0f566c6fc4c1b9bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c3f8dbbcca5c53e6d2afd1979e916f.png)
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【推荐2】如图,正方形网格中每个小正方形边长均为1,每个小正方形的顶点叫格点,以格点为顶点按下列要求画图:
,请找出格点
,使以
四个点为顶点的四边形为平行四边形,画出所有符合条件的平行四边形,并在图上标出点
的位置;
(2)直接写出所有满足以上条件的
点的坐标是 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0efe3c42f37bcb7d6552fdf6261e50a.png)
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(2)直接写出所有满足以上条件的
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