名校
1 . 如图,等腰三角形
的底边
长为6,面积是24,腰
的垂直平分线
分别交
,
边于E,F点.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/7bef5239ddbb0972700ce01daf9ee7cf.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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/549d696f3649555241f2c6069d019da4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/5/b0be0f55-69cb-4200-a882-c8b7e04b0209.png?resizew=210)
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2 . 下列说法中,正确的是( )
A.三角形的一条中线把三角形分成面积相等的两个三角形 |
B.三角形的一个外角大于任何一个内角 |
C.三角形的三条高都在三角形内 |
D.三角形三边的垂直平分线的交点到三边的距离相等 |
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3 . 下列说法正确的是( )
A.![]() ![]() |
B.任意实数都有立方根 |
C.三角形三条中线的交点到三角形三个顶点的距离相等 |
D.两边和一个角分别相等的两个三角形全等 |
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2023-11-28更新
|
242次组卷
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2卷引用:重庆市沙坪坝区南开中学校2023-2024学年八年级上学期期中数学试题
名校
4 . 如图,在
中,
,
,
垂直平分
,分别交
,
于点
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d3c9ce32b721995f355eea411340e3.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/f52a58fbaf4fea03567e88a9f0f6e37e.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/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/17/7f267f07-97ae-4d9d-9e4a-408e2a9a2983.png?resizew=192)
您最近一年使用:0次
2023-11-28更新
|
145次组卷
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3卷引用:重庆市云阳县路阳镇路阳小学2023-2024学年八年级上学期期中数学试题
5 . 如图,
中,
的平分线
与边
的垂直平分线
相交于D,
交
的延长线于E,
于F,现有下列结论:①
;②
;③
平分
;④
;其中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c01bd311182f7a45dfd3cc4e3593b957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2e2c0d4ac2bd79f6cea7a9b1a50662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/761a77e11e1e45c2a8b2d34d22cf8e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7faabc484ce3666706c1beffda4bcfe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b23b0bf953a5a322becc1fee82ba6bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c962fe4f47732b8e6e83d17ff2b9af13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2049c441e4707751f4ca5a7995edbe4d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/27/e06e6b8c-60e0-4fe3-9948-c3c65c1de201.png?resizew=169)
A.1个 | B.2个 | C.3个 | D.4个 |
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6 . 如图,点P为
内一点,分别作出P点关于
的对称点
,连接
交
于M,交
于N,
,则
的周长为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/339773a4e6e557f0846ebcb5830145e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c606fda28ef2b1da0c790c62bd519946.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4a949c00526fddf435423272cf10f25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/672f52292652778fcaac97789f636f41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
![](https://img.xkw.com/dksih/QBM/2023/10/15/3346561887576064/3361628373729280/STEM/721408f1c97b44aeb44230b8c74d1ee1.png?resizew=172)
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7 . 如图,在
中,
,线段
的垂直平分线交
于点
,
的周长是
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dafddfd80f69337909f6eac0f0dbfd59.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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1275768bdac801185ef152290a85ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89bdf772c67409a332fa4a2d9ca214f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/20/dcccaf71-bb09-4514-a56b-99b84868beee.png?resizew=151)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-11-16更新
|
75次组卷
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2卷引用:重庆市江津区16校联盟学校2023-2024学年八年级上学期12月定时作业数学试题
8 . 如图,
是等边三角形
的边
上的高,
,点M是边
上的动点,点E是边
的中点,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267ace52b64e1e7dfc5211e033255b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85b3800c5748c77368210bd43e5b8bcc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/19/5f19d002-542c-4f3f-94dc-f32600e12a2a.png?resizew=137)
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2023-11-15更新
|
82次组卷
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2卷引用:重庆市江津区16校联盟学校2023-2024学年八年级上学期12月定时作业数学试题
9 . 如图,在
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/15/9173b073-6201-4deb-b711-4b14853196fd.png?resizew=96)
(1)作
垂直平分线
,交
于点
,交
于点
(保留作图痕迹,不写作法);
(2)连接
,若
,
的周长是17,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/15/9173b073-6201-4deb-b711-4b14853196fd.png?resizew=96)
(1)作
![](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/60ef95894ceebaf236170e8832dcf7e3.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)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc5df62e8ac9c74a46462519b95479a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2023-11-13更新
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2卷引用:重庆市江津区16校联盟学校2023-2024学年八年级上学期12月定时作业数学试题
名校
10 . 如图,在
中,
是
的垂直平分线,
的周长为
,
的周长为
,则
的长为( )
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a835d77c364303ea59d96e6ce42a58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d51b21602ca6906279ecb645bfd12fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/26/9b05be30-9e9b-4672-995b-9419860040eb.png?resizew=122)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-11-11更新
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2卷引用: 重庆市育才中学2023-2024学年八年级上学期数学定时训练二