1 . 已知:如图,在
中,边
、
的垂直平分线交于点
.则下列结论一定成立的有( )个.
①
.②点
在
的垂直平分线上.③
④
⑤
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/e57f38bd-f981-4f54-a641-1cc4cabac5e0.png?resizew=152)
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30fc65a72853bd8ac1ad0828270d3baf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f616b35f456fd8315f9bcd9fe4415b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f7b64a7e1999d366a0f67038c518c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da6bcc0f26c5a6901c594b8260d3c4aa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/e57f38bd-f981-4f54-a641-1cc4cabac5e0.png?resizew=152)
A.2个 | B.3个 | C.4个 | D.5个 |
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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.![]() |
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2024-01-21更新
|
628次组卷
|
18卷引用: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
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(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)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
3 . 如图,在
中,
的垂直平分线交
于N,交
于M,P是直线
上一动点,点H为
中点.若
,
的面积是30,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bed1b015150b0e23bf89383508fe129.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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3ef145010ce1a0c3119392e75e64548.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/4/f3c50ac1-899c-4ec4-a3f3-88af37f9ac83.png?resizew=131)
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2024-01-16更新
|
169次组卷
|
5卷引用:黑龙江省大庆市肇源县四校联考2023-2024学年八年级上学期开学考试数学试题
4 . 如图所示,
,
,且a,b满足
,
于点D,交
于点E,点
,且点D恰好在
的垂直平分线上.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/20bdbe03-fee4-4184-8504-fcbb20f980d1.png?resizew=348)
(1)求点C的坐标;
(2)动点P从点A出发沿折线
轴负方向以4个单位长度的速度运动,动点Q从点O出沿线段
以每秒2个单位的速度向终点C运动,P,Q两点同时出发,且点Q到达C处时,P,Q两点同时停止运动,设点Q的运动时间为
秒,
的面积为S,用含
的式子表示
(3)在(2)的条件下,当
是以坐标轴为对称轴的等腰三角形时,求出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b9486ec9dca95979803bf91ca6c337.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7255cbfbc86408b7cd865e89e5de0fb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c37670a4d0d86758a7cc32281fc4691.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70734a8e672376bb0bd1522e229f86a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33db06ad25a639a5f796e82bf80891d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/20bdbe03-fee4-4184-8504-fcbb20f980d1.png?resizew=348)
(1)求点C的坐标;
(2)动点P从点A出发沿折线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5557eeefe40f7fbb42b27c7c821e18d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8dcc9f79fe5f07f25447aa442ee14ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)在(2)的条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8dcc9f79fe5f07f25447aa442ee14ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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5 . 如图,点
、
在
的边
上,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/e418281e-63fe-4ff1-81bf-e6201295da22.png?resizew=206)
(1)求证:
.
(2)若
,
,直接写出图中除
与
外所有等腰三角形.
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d212c1709b8e72a055cf1b5381ef64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/421291381be28da4bd16560fd383b4a9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/e418281e-63fe-4ff1-81bf-e6201295da22.png?resizew=206)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2677ee9264fd2b6338e4ed853c91e320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b7a865c92beff8f503abae338214a3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
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6 . 如图,在
中,
,
是线段
的垂直平分线,
.
(1)求证:
;
(2)求
的度数.
![](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/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad6d85a9811d68a03388d00c7175a2f7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/b9a7e78e-1913-4518-bc1b-35c448f8eada.png?resizew=207)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f829dbbbea1a1b84acb87e099934bafc.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
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7 . 如图(1),四边形
中,
,
平分
.
(1)求证:
.
(2)如图(2)
的垂直平分线交
于
,交
于
,过
作
,交
延长线于
.求证:
.
(3)如图(3),在(2)的条件下,连接
,若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3798a74058ec4bc40b6d9b5d268c359b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/1e90d355-73bb-4405-9dd5-279a76e4fb5e.png?resizew=512)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
(2)如图(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090c757c225b6961975c9610e3dbae56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17b22554cb4eedb4d7e53c830a5c3639.png)
(3)如图(3),在(2)的条件下,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a8b0d2c7b6617ae2e87169732730b3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04725e51b4870658f74de79403e3898f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
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8 . 如图,在
中,
,
,
的垂直平分线
交
于点D,
,则
的长是_____
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6e4a2df58a236c20df5df0d29a466c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ba2098ed6b4137b08932524b72ba37.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/0f3d1d8c29fd452e4ca9f18adc4adb82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/8d5ca129-e574-4e32-b905-59209bc6c854.png?resizew=225)
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9 . 如图,在
中,分别以点
和点
为圆心,大于
的长为半径画弧,两弧相交于点
,作直线
,交
于点
,连接
.若
的周长为10,
,则
的周长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/aba02603-7599-4942-a3ba-c76a245845fc.png?resizew=155)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](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/20d49404351575703cfe8325d1352ec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ac5396c5ea442e0364b50c1db3d2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e0c5cb53fd85b7a23f0580df6bb49a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/aba02603-7599-4942-a3ba-c76a245845fc.png?resizew=155)
A.10 | B.34 | C.17 | D.16 |
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10 .
中,
,
的垂直平分线交直线
于点
,若
,则
是_______ 度.
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.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/28ba2053635875ceda0b74202e9efa6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
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