小明想利用一块三角形纸片裁剪一个菱形,要求一个顶点为A,另外三个顶点分别在三角形的三边上,请你在原图上利用尺规作图把这个菱形作出来.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/2c5ee6ae-f222-4b44-aa33-fdf6623fa760.png?resizew=212)
更新时间:2021-10-16 19:30:24
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解答题-作图题
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【推荐1】使用直尺与圆规完成下面作图,(不写作法,保留作图痕迹)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/6/e5141bc1-3549-472e-aee6-5657c29ae410.png?resizew=198)
(1)在
上找一点P使得P到
和
的距离相等;
(2)在射线
上找一点Q,使得
;
(3)若
,则点Q到边
的距离为______.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/6/e5141bc1-3549-472e-aee6-5657c29ae410.png?resizew=198)
(1)在
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)在射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b12b6d1e4fc6fce56bf1bd6d4e41ae1.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb262f3529a3e84959fe594b6628c77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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解答题-问答题
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【推荐2】如图,已知∠BAC及两点M、N.
求作:点P,使得PM=PN,且P到∠BAC两边的距离相等.
求作:点P,使得PM=PN,且P到∠BAC两边的距离相等.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/21/733ccd07-3b4d-4515-8aec-fee9cc6c0151.png?resizew=161)
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解答题-作图题
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【推荐1】在
的方格纸中,每个小正方形的边长为1,
的顶点都是格点,请用无刻度的直尺作图.
(1)在图1中
边上画点D,使得
.
(2)在图2中作
的高
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d009739b5b5362c7902eeeada94adb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/10/3f4b01b8-9423-4852-bd29-0d8cffa397dd.png?resizew=321)
(1)在图1中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9463fa05ba2b239f90c8acb5a0d7654c.png)
(2)在图2中作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
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解答题-作图题
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【推荐2】如图,有
,用尺规作图的方法,分别作
边的垂直平分线
和
边的垂直平分线
,
和
交于点P.(保留作图痕迹,不要求写作法)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/fbdc62db-ffdd-41e0-884e-f0a79cfa0de9.png?resizew=198)
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解答题-证明题
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真题
名校
【推荐1】如图,四边形
中,
,
平分
,
交
于
.
是菱形;
(2)若点
是
的中点,试判断
的形状,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b772f3670080e6146b56d2b5673efec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6bfad3f7e65188bcf7f62ea5acdbf4a.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解答题-证明题
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【推荐2】已知平行四边形
中,
,垂足为
与
的延长线相交于
,且
,连接
;
(1)如图
,求证:四边形
是菱形;
(2)如图
,连接
,若
,在不添加任何辅助线的情况下,直接写出图
中所有面积等于
的面积的钝角三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f913298f0fae9f55377a8deab9f099dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9753015ac5d36ed0716cd32cbf593ee0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/894dec5fc636472dc483cb79895e7756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e063f09f965c60f7d856caa082f2229.png)
(1)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cf7e12dc03db7186feae41fd1751499.png)
(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b63d2504bd3ecce8c10560b142356f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52d106adbcd60149553b74bc4f27a2b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f96bcaab1157f577919c7abc73a66ebd.png)
![](https://img.xkw.com/dksih/QBM/2019/3/18/2163014772744192/2163665757216768/STEM/17d351839f304237857f8e18763f32a3.png?resizew=448)
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