1 . 在如图所示的
中,
的垂直平分线
交
于点
,垂足为
,
为
上任意一点,若
,
,
,则
周长的最小值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/22/50dd464e-49c7-4ff2-9e57-028e9028270c.png?resizew=218)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65fc998d33cdf37c272f79cfd64b7b99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/22/50dd464e-49c7-4ff2-9e57-028e9028270c.png?resizew=218)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . 如图,
中
的垂直平分线分别交
、
于点
、
,点
为
上一动点,则
的最小值是以下哪条线段的长度( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/27/39ad5313-b22c-40cd-89a7-01886e33878e.png?resizew=125)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9053054055199b6f13fddcc5802f7201.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/27/39ad5313-b22c-40cd-89a7-01886e33878e.png?resizew=125)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-21更新
|
628次组卷
|
18卷引用:重庆市南开中学2021-2022学年八年级上学期入学考试数学试题
重庆市南开中学2021-2022学年八年级上学期入学考试数学试题安徽省阜阳市2021-2022学年八年级上学期期中数学试题山东省德州市陵城区2021-2022学年八年级上学期期中数学试题天津市第七中学2021-2022学年八年级上学期期末数学试题北京市东城区2021-2022学年八年级上学期期末数学试题河北省邯郸市永年区2021-2022学年八年级上学期期末数学试题天津市滨海新区塘沽第一中学2021-2022学年八年级上学期期中考试数学试题黑龙江省哈尔滨市巴彦县2022-2023学年八年级上学期期中数学试卷(已下线)人教版(2012)八年级上册期末冲刺小卷五河南省驻马店市平舆县2022-2023学年八年级上学期期中数学试题(已下线)专题07 最短路径问题(3类经典题型+优选提升)-【好题汇编】备战2023-2024学年八年级数学上学期期中真题分类汇编(人教版)黑龙江省哈尔滨市巴彦县华山乡第一中学2022-2023学年八年级上学期期中数学试题黑龙江省哈尔滨市尚志市苇河镇中学2022-2023学年八年级上学期期中数学试题安徽省芜湖市第二十九中学2023-2024学年八年级上学期期中数学试题江苏省南京大学附属中学2023-2024学年八年级上学期数学期末模拟综合评估试题江苏省徐州市邳州市宿羊山初级中学2023-2024学年八年级上学期期末数学试题辽宁省葫芦岛市绥中县2023-2024学年八年级上学期期中数学试题四川省绵阳市安州区2023-2024学年八年级上学期期末数学试题
名校
3 . 如图,已知
,
平分
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/0f74aa1e-d12f-4da7-a757-82255bd0ac53.png?resizew=197)
(1)用尺规完成以下基本作图:作
的垂直平分线交
于点
,交
于点
,交
于点
.连接
,
.(不写作法,不下结论,保留作图痕迹)
(2)若
,求四边形
的周长.
![](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://img.xkw.com/dksih/QBM/editorImg/2024/1/21/0f74aa1e-d12f-4da7-a757-82255bd0ac53.png?resizew=197)
(1)用尺规完成以下基本作图:作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b0393ce62b24aa5f9b740d4cc6743b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a61d8bedef61745ee4fd89a8c0c119.png)
您最近一年使用:0次
名校
4 . 如图,在
中,
,过点A作
交
于点D,E是线段
上一点,连接
,在平面内将线段
绕点E逆时针旋转
得到线段
,连接
、
,则
的度数为______ .
![](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/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/391479c151307826c9765a47a5f10503.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d59511c474942171fb685fc3f8dfd2d.png)
您最近一年使用:0次
2024-01-20更新
|
450次组卷
|
2卷引用:重庆市沙坪坝区第一中学校2023-2024学年八年级上学期期末数学试题
5 . 如图,
,点C在线段
的垂直平分线上且点B,C,E三点共线,连接
,若
,
,则线段
的长度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9d4a2332cf3c3f6ac0ab8fd70a5196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/18/983991a2-107a-423c-967d-9a80d74cb3a4.png?resizew=221)
A.4 | B.5 | C.6 | D.7 |
您最近一年使用:0次
6 . 如图,正方形网格中的每个小正方形边长都是1,每个小正方形的顶点叫做格点.
、
,画线段
使它与
、
组成轴对称图形(画出所有符合题意的线段);
(2)在图②中,找一格点D,使它到
、
的距离相等,到点A、C的距离也相等.(找到D点即可,不写过程)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)在图②中,找一格点D,使它到
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
您最近一年使用:0次
7 . 如图,在
中,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/18/778cee0c-4a80-40ff-aeb0-1e12a5dc311a.png?resizew=243)
(1)请用直尺和圆规,作出
边的垂直平分线
,交
于点
,交
于点
,连接
:(只保留作图痕迹)
(2)求
的度数.
解:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f945fdf3cf03f1921c33151aac7849c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf284258bd221bef93395fe896b47e0.png)
①______
垂直平分![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
②______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a4c31d03909bc82980aa9dbbaaf1a2f.png)
③______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/398511d6449a07997879e6fae3579d95.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/18/778cee0c-4a80-40ff-aeb0-1e12a5dc311a.png?resizew=243)
(1)请用直尺和圆规,作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5157b42da58d55daad27d98b2fec15ff.png)
解:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f945fdf3cf03f1921c33151aac7849c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf284258bd221bef93395fe896b47e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/897148e18b15466a7b3fb87fb886845b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1949518fc246fbd8426d08f701ade25d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a4c31d03909bc82980aa9dbbaaf1a2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/401814fb1e410facefbf16c12a880efe.png)
您最近一年使用:0次
8 . 如图,在
中,
,
,且
面积是12,
的垂直平分线
分别交
边于点E,F,若点D为
边的中点,点M为线段
上一动点,则
的最小值为______ .
![](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/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](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/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc4c176e8432280c9a959cee8e35f22e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/18/f9dd4dc4-0d4c-43d3-9b0a-a251916ef192.png?resizew=133)
您最近一年使用:0次
9 . 如图,在五边形
中,
,点P,Q分别在边
,
上,连接
,
,
,当
的周长最小时,
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6723f8b9d907981aa735cd96386bee36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/834e64dbd62f3ca4b1475e54803af9d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80672dda9430cb42b3136bcb1b67bbad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/128147bd4834566a78b4e9d2a3b2139c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e430f13f42cf2d44aa0f0e20b959684f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7023ec0f513c7d0ef86859a5ede54.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/18/11f9f959-20f1-4b8e-93c1-ef373833720a.png?resizew=156)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
10 . 如图,在等腰三角形
中,
平分
垂直平分
交
于点
,则
的长是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029222a5dff22df03218fc4c76f73c0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933926a18552f8a3b9cd6ab28212e1e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
您最近一年使用:0次
2024-01-17更新
|
322次组卷
|
5卷引用:重庆市北碚区2023-2024学年八年级上学期期末数学试题