1 . 某景区因其特有的玻璃观光栈道吸引了众多游客前来打卡,景区内有两条可供游客观赏自然风光的观光玻璃栈道
,
,由于景区客流量日益增多,现景区准备新建一条新的玻璃栈道
.某数学研究小组的同学们把测量玻璃栈道
,
之间的距离作为一项课题活动,设计了如下表所示的测量方案:
(1)景区修建
玻璃栈道后从
到
观光所用的时间缩短了,其中蕴含的数学原理是________;
A.三角形具有稳定性 B.两点确定一条直线
C.两点之间线段最短 D.垂线段最短
(2)请你利用皮尺和测角仪,通过测量长度、角度等几何量,求出
,
之间的距离,并写出你的测量及求解过程.(要求:测量得到的长度用字母
表示,角度用
表示)
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
课题 | 测量玻璃栈道![]() ![]() |
成员 | 组长:××× 组员:×××,×××,××× |
测量工具 | 测角仪、皮尺等 |
测量方案 | … |
测量示意图 |
|
测量数据 | … |
(1)景区修建
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.三角形具有稳定性 B.两点确定一条直线
C.两点之间线段最短 D.垂线段最短
(2)请你利用皮尺和测角仪,通过测量长度、角度等几何量,求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a74ff240522a4878960ef0bca0f2ff1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2cb15537760510ba12091723144f729.png)
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2 . 按照下列要求完成画图及问题解答.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/b9eeee1c-fd8f-4786-8204-47abef5d6ce2.png?resizew=113)
(1)分别画直线
和射线
;
(2)画线段
,取
的中点
;
(3)过点
画直线
的垂线,交直线
于点
;
(4)测量点
到直线
的距离为______
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/b9eeee1c-fd8f-4786-8204-47abef5d6ce2.png?resizew=113)
(1)分别画直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)画线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(3)过点
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(4)测量点
![](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/9efa9fbcfb9595e2f031aa691db4564b.png)
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3 . 作图题.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/ca87aac7-b6d2-4cb5-8474-618593d75f06.png?resizew=143)
(1)根据下列语句,利用尺规作图,保留痕迹.
①画射线
;
②连接
;
③反向延长
至
,使得
;
④在直线
上确定点
,使得
最小.
(2)请写出(1)中“④在直线l上确定点E,使得
最小”的作图依据是______.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/ca87aac7-b6d2-4cb5-8474-618593d75f06.png?resizew=143)
(1)根据下列语句,利用尺规作图,保留痕迹.
①画射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
②连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
③反向延长
![](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/78002bca853929365a3f58082f3e7637.png)
④在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/769688bfdcb3a9e1f17548033aadc6fe.png)
(2)请写出(1)中“④在直线l上确定点E,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/769688bfdcb3a9e1f17548033aadc6fe.png)
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4 . 如图,线段
和点C.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/25/39773396-ffa0-4dd6-8c2d-44c75f914822.png?resizew=78)
(1)尺规作图:作射线
,并在射线
上分别确定点D,E,使
,点C是
的中点;(不写作法,保留作图痕迹)
(2)在(1)的条件下,若
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/25/39773396-ffa0-4dd6-8c2d-44c75f914822.png?resizew=78)
(1)尺规作图:作射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4dd6e7c88601b4c50b06f1238fdd95d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(2)在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377b5f7197e5bd1afeea4d931307956a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
名校
5 . 如图,已知直线k和直线k外三点A、B、C,请按下列要求画图:
(1)画线段
,射线
;
(2)利用无刻度直尺与圆规,在射线
上取一点D,使得
(不写做法,保留作图痕迹);
(3)可判断出
与
的数量关系____,理由是_________.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/22/0c89ba36-e282-4f1c-a08b-1272dc268461.png?resizew=199)
(1)画线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)利用无刻度直尺与圆规,在射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67065cbcbfab758118654f26e421aab.png)
(3)可判断出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e3fad360f2d1e3ff0869af78ea1fd6.png)
您最近一年使用:0次
名校
6 . 如图,已知直线l和点A、B、P.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/75c271c9-b061-4ac1-a65f-d54b0cf8d4f7.png?resizew=129)
(1)用适当的语句表述点A与直线l的位置关系:______;
(2)请用直尺和圆规按下列要求作图(保留作图痕迹):
①画直线
;
②画射线
;
③在射线
上作线段
,使得P为线段
的中点;
(3)连接
,则
_____
(填“
”“
”“
”)成立的理由是______.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/75c271c9-b061-4ac1-a65f-d54b0cf8d4f7.png?resizew=129)
(1)用适当的语句表述点A与直线l的位置关系:______;
(2)请用直尺和圆规按下列要求作图(保留作图痕迹):
①画直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
②画射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
③在射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(3)连接
![](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/6086e116230cda6f510a227b464d56e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392cdb9d30684cce244bef94b8d861b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
您最近一年使用:0次
名校
7 . 如图,点A,B,C是不在一条直线上的三个点,过B,C两点作直线,并连接
,
.
(1)尺规作图:延长
至D,使得点A为
的中点,作射线
,在射线
上截取
.(作图工具只限直尺和圆规,保留作图痕迹)
(2)若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/16/ff8389c2-6a3f-4f63-9137-1c56e7b9ef1f.png?resizew=158)
(1)尺规作图:延长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6daf0518f735d80abefa2a7b37f9187f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ae3a066ad365deef67fe335f60f031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
您最近一年使用:0次
8 . 如图,在同一平面内有三个点
与直线
,根据下列语句按要求作图:
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/15/76289cb5-f171-4159-965e-8a64d3c1530b.png?resizew=247)
(1)作射线
;
(2)作线段
;
(3)用圆规在线段
的延长线上截取
;
(4)在直线
上找到一个点
,使得
最小,理由是______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7af7c5df749c6fa9bbe87faa72c66d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/15/76289cb5-f171-4159-965e-8a64d3c1530b.png?resizew=247)
(1)作射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)作线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(3)用圆规在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a1bf64ba772922fe58b5322eb4bced.png)
(4)在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e538ecb0f77fb4ac984f70241f5c3bf3.png)
您最近一年使用:0次
9 . 作图题:如图,点
,
分别是直线
上和直线
外的点,直线
和射线
交于射线
的端点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/11/ca50561e-ca91-4a6d-a6f2-79fd258ebc49.png?resizew=223)
(1)连接
;
(2)在射线
上求作点
使得
(保留作图痕迹);
(3)请在直线
上确定一点
,使点
到点
与点
到点
的距离之和最短,并写出画图的依据.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/11/ca50561e-ca91-4a6d-a6f2-79fd258ebc49.png?resizew=223)
(1)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)在射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46131668d055a34aebf3e28ea11e90d3.png)
(3)请在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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10 . 如图,已知三点
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/10/65e3df3b-96d2-40fb-8393-3af8c5402127.png?resizew=162)
(1)画直线
;
(2)用语句表述图中点
与直线
的关系:________;
(3)连接
,在线段
的延长线上作线段
,使
(用直尺和圆规作图,保留作图痕迹);
(4)连接
,
,则
________
(填“
”,“
”,“
”),理由是__________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/10/65e3df3b-96d2-40fb-8393-3af8c5402127.png?resizew=162)
(1)画直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)用语句表述图中点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(3)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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(4)连接
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afaf9cb3109c17d8be1b7600e4440d45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392cdb9d30684cce244bef94b8d861b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
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