1 . 下列命题是真命题的是( )
A.相等的角是对顶角 |
B.若![]() ![]() |
C.到线段两端距离相等的点,在这条线段的垂直平分线上 |
D.三个角对应相等的两个三角形全等 |
您最近一年使用:0次
2 . 如图,在所给网格图(每小格均为边长是1的正方形,每个小正方形的顶点称为格点)中完成下列各题:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/fde8f3ed-2b9e-40ba-8ca8-22ae5edd76fa.png?resizew=258)
(1)画出格点
(顶点均在格点上)关于直线
对称的图形
;
(2)在
上画出点P,使
最小;
(3)在
上画出点Q,使Q到B,C两点的距离相等;
(4)四边形
的面积为_______.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/fde8f3ed-2b9e-40ba-8ca8-22ae5edd76fa.png?resizew=258)
(1)画出格点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d1d99eab930cef884e01b97d4d56f1.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(4)四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
您最近一年使用:0次
3 . 在
中,
,
,尺规作图痕迹如图所示.结论Ⅰ:连接
,则
;结论Ⅱ:点F到
三边距离相等.对于结论Ⅰ和Ⅱ,下列判断正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/2bc7bbfe-1a62-48bc-918e-d14dbbf2f949.jpg?resizew=141)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96251f9c30d745c1e6e3b60977722069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cf5b86308e9f777a6611503ba8d0e9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/2bc7bbfe-1a62-48bc-918e-d14dbbf2f949.jpg?resizew=141)
A.Ⅰ和Ⅱ都对 | B.Ⅰ对、Ⅱ不对 | C.Ⅱ对,Ⅰ不对 | D.Ⅰ和Ⅱ都不对 |
您最近一年使用:0次
4 . 如图,在
中,
,
,
,直线m是
中
边的垂直平分线,交
于点P,则
的周长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/d7792f81-1092-45b9-a390-4b841251c6a7.jpg?resizew=148)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae8221601c7bd5c51fd520615581fa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/9524e3810e06dc781285f1289e75d653.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/d7792f81-1092-45b9-a390-4b841251c6a7.jpg?resizew=148)
A.6 | B.10 | C.11 | D.13 |
您最近一年使用:0次
5 . 如图,在
中,
是
的垂直平分线,
,
的周长为
,则
的周长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/f80f39b2-c88e-472f-ae53-872ee670994c.png?resizew=124)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb49df05f2e31d005735c3f14a21d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1b172922540f145d9e48b2a65a871a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/f80f39b2-c88e-472f-ae53-872ee670994c.png?resizew=124)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-12-23更新
|
122次组卷
|
3卷引用:河北省廊坊市永清县第五中学2023-2024学年八年级上学期月考数学试题
6 . 嘉淇同学作线段
的垂直平分线如图所示,则下列说法错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/22/f9a36f45-f25a-42c2-86fa-0a7b16c6bec3.png?resizew=121)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/22/f9a36f45-f25a-42c2-86fa-0a7b16c6bec3.png?resizew=121)
A.![]() | B.两条弧的半径相等 |
C.![]() | D.![]() |
您最近一年使用:0次
7 . 如图,在
中,
垂直平分
,若
,
,则
的周长等于( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/13/a317e466-0faa-42ca-ab9f-95252e96dfcb.png?resizew=151)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af1389d663411aaf232fd509b08ed026.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e7b2cf439dba4f60f17d4ffd0c42da2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ac5396c5ea442e0364b50c1db3d2da.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/13/a317e466-0faa-42ca-ab9f-95252e96dfcb.png?resizew=151)
A.11 | B.13 | C.14 | D.16 |
您最近一年使用:0次
2023-12-22更新
|
78次组卷
|
2卷引用:河北省沧州市泊头市2023-2024学年八年级上学期月考数学试题
8 . 如图,在中,
,
的垂直平分线
分别交
于点D,E,则
的度数为( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-12-22更新
|
139次组卷
|
3卷引用:河北省 石家庄市第五十四中学2022-2023学年八年级上学期期末数学试题
名校
9 . 如图,在
中,
是边
上的一点,连接
,
垂直平分
,垂足为
,交
于点
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/12/a6c6f7ca-21d7-4077-9ed6-8aec94877690.png?resizew=199)
(1)若
的周长为
,
的周长为
,求
的长;
(2)若
,
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/12/a6c6f7ca-21d7-4077-9ed6-8aec94877690.png?resizew=199)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be7581dbbccda50e5d5cd18056ddea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2689f0ce5ab3467d8214794d8acb2bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b06e95b57b7a81cd81d05557a11fa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7682e85567dfdf6daef514d96ae2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86cc0b6f5748fb58042339b4b563bc07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d19f963f7c803bcfcbb265ec6d4304.png)
您最近一年使用:0次
10 . 如图,牧马人从
地出发,先到草地边某一处牧马,再到河边饮马,然后回到
处,要求指出最短路径.
同学甲:牧马人从
地出发,把马牵到草地与河边的交汇处
点,牧马又饮马,然后回到
处.
同学乙:作
点关于直线
对称的
点,再作
点关于直线
对称的
点,连接
交直线
于
点,交直线
于
点,则路径
为最短路径.
你认为哪位同学指出的最短路径正确?画出图形,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
同学甲:牧马人从
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
同学乙:作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](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/b1f01d10dc58f46d288f446d030d4248.png)
你认为哪位同学指出的最短路径正确?画出图形,并说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/18/1f903a38-20b9-419a-a42d-13ed790e29b6.png?resizew=152)
您最近一年使用:0次