1 . 如图,
的斜边
的垂直平分线
与
交于点
,
,
,则
的面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/6/38ec5e01-b6cf-481b-bcb8-688b585bbf38.png?resizew=261)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cdc5c5356ec37800b9e71ee1ad5cca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f9bba0e729202b7b71c72b5f2ae958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4b0c4b339f44bbac0e275eb0718234.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/6/38ec5e01-b6cf-481b-bcb8-688b585bbf38.png?resizew=261)
A.1 | B.2 | C.4 | D.5 |
您最近一年使用:0次
2024-02-04更新
|
110次组卷
|
2卷引用:山西省吕梁市交口县2023-2024学年八年级上学期期末数学试题
2 . 如图,
,若
和
分别垂直平分
和
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58555117f36bec3a7d33b5665ac246b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef9d0784478511736255074b9395fae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d385f60d35804535c78ae45fe4e4501.png)
![](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/7aa496bdfb5e2da81adcb1cd7f10f35f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-02-04更新
|
205次组卷
|
4卷引用:山西省晋中市太谷区2023-2024学年八年级下学期期中数学试题
山西省晋中市太谷区2023-2024学年八年级下学期期中数学试题湖北省十堰市丹江口市2023-2024学年八年级上学期期末数学试题(已下线)专题01 三角形的证明(考点清单)-2023-2024学年八年级数学下学期期末考点大串讲(北师大版)(已下线)专题05 生活中的轴对称(考点清单)-2023-2024学年七年级数学下学期期末考点大串讲(北师大版)
3 . 如图,将长为16cm的橡皮筋放置在水平桌面上,固定两端A和B,然后把中点P垂直向上拉升至点C,橡皮筋被拉长了4cm,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/3439dd5c-7b9d-43bc-ab9a-53b244f6c94a.jpg?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/3439dd5c-7b9d-43bc-ab9a-53b244f6c94a.jpg?resizew=160)
A.12 | B.10 | C.6 | D.2 |
您最近一年使用:0次
4 . 综合与探究
如图,在
中,
,M为线段
上一动点(不与B,C重合),过点M作
于点P,延长
至点N,使
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/16/dc50ce21-d0d1-4ab8-bf35-9c3122c512b4.png?resizew=345)
(1)求
的度数;
(2)如图1,当M为
的中点时,判断
与
的位置关系,并说明理由;
(3)如图2,点C关于
的对称点为D,连接
交
于点E,连接
,
,若
,求
的度数.(用含
的代数式表示)
如图,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392b9e1a179a6676362679354a9e7e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb15c0cbbc5f0967d2a799e7a82f5648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438f34bc8b04e8c494b91306ac6fe352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52a60cc67d97e407ab765f6b7dfd5d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaae35d4ce0b615993cdd627de16442e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/16/dc50ce21-d0d1-4ab8-bf35-9c3122c512b4.png?resizew=345)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e470b9b1ab6b8db7d19dc1e48ad6f09b.png)
(2)如图1,当M为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
(3)如图2,点C关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2e2c0d4ac2bd79f6cea7a9b1a50662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3533837e3d08c461dea031a44e5424d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e77432f6707f00dc139ab08f11672de9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0446ade2f02c9cdb6bb098ecaa6adf5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4067b50a6aa2a6462f1d9df4b093f66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
2024-01-30更新
|
29次组卷
|
2卷引用:山西省吕梁市兴县2023-2024学年八年级上学期期末数学试题
5 . 如图,在
中,
的面积是42,
的垂直平分线
分别交
边于点
,
,若点
为
边的中点,点
为线段
上一动点,则
周长的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/670250feeda108112dc95e8bc327d361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2281cb6df0c3c518ce5ed19a02b57e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/b2106654-a233-48d8-ba09-afd7b1479485.png?resizew=117)
您最近一年使用:0次
6 . 如图,在
中,
,
,
的垂直平分线交
于点E,
的垂直平分线交
于点F,则
的周长是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29edec1f0ccd57a096fa9ef344d23568.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](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/4c105d6ba18fbb0581fb982175e2eac9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/28/cc13d8d4-3b74-4fa9-80c9-09080c5f16c0.png?resizew=182)
A.8 | B.7 | C.6 | D.5 |
您最近一年使用:0次
7 . 请仔细阅读下面的材料,并完成相应的任务.
作角的平分线
数学兴趣课上,老师让同学们利用尺规作
的平分线,同学们以小组为单位展开了讨论,勤学小组展示了学习过的作法∶如图1,以点O为圆心,任意长为半径作弧,分别交
,
于点M,N;再分别以点M,N为圆心,大于
的长为半径作弧,两弧相交于点P,作射线
,则
即为
的平分线.
勤学小组的证明过程如下:
连接
,
.
……
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/28/f17ce9db-0067-427f-89c7-e25e2f1a3775.png?resizew=263)
任务:
(1)请按照上面的材料,写出该证明的剩余部分;
(2)在图2中再设计一种不同的方法作
的平分线.(要求∶尺规作图,保留作图痕迹,不写作法)
作角的平分线
数学兴趣课上,老师让同学们利用尺规作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae7a3e520a16d4fdd73c4e6a4ce7be0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62e8aadaadebf1454fde21a390ebdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94e1ca12da27075e5241b7c7ce74672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0101a7b5c8a4aed0de2af363792e39a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0101a7b5c8a4aed0de2af363792e39a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
勤学小组的证明过程如下:
连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d9792485ccd1ba479ceba6397c15ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed1b418d67b301ebfd7db583aa176e28.png)
……
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/28/f17ce9db-0067-427f-89c7-e25e2f1a3775.png?resizew=263)
任务:
(1)请按照上面的材料,写出该证明的剩余部分;
(2)在图2中再设计一种不同的方法作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
您最近一年使用:0次
8 . 如图,在
中,
,
,分别以
为圆心,大于
的长为半径画弧,两弧交于
两点,作直线
,分别交
,
于点
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f1f15400d48e7b756e87e3f566aabe.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d3c9ce32b721995f355eea411340e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae6f48b9a53c0155a692509cf31f7e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d49404351575703cfe8325d1352ec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3648c864f9f58da1dbb166fee84cfeaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231c3e0c5366da20b9c8de0423e7a7d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f1f15400d48e7b756e87e3f566aabe.png)
您最近一年使用:0次
2024-01-28更新
|
67次组卷
|
2卷引用:山西省吕梁市孝义市2023-2024学年八年级上学期期末数学试题
9 . 如图,在
中,
,
是
的垂直平分线,分别交
,
于点D,E,连接
,
平分
,若
,则
的长为___________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377b5f7197e5bd1afeea4d931307956a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/27/eb31245e-a37a-414f-8bf0-44e50179706b.png?resizew=181)
您最近一年使用:0次
10 . 如图,在等腰三角形
中,
,
,
的垂直平分线
分别交
,
于点D,E,点F为
的中点,点P为直线
上的一动点.若
的面积为15,则
的周长的最小值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/28/1cc10a98-93aa-4d36-ab04-5bdd7dc43ee3.png?resizew=139)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](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/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c3a4638e2eb4e684b73416fb6a0f344.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/28/1cc10a98-93aa-4d36-ab04-5bdd7dc43ee3.png?resizew=139)
A.5 | B.![]() | C.10 | D.11 |
您最近一年使用:0次