名校
1 . 依次连接菱形各边中点所得到的四边形是 ________ .
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13卷引用:黑龙江省大庆市龙凤区2022-2023学年八年级下学期期中数学试题
黑龙江省大庆市龙凤区2022-2023学年八年级下学期期中数学试题辽宁省朝阳市建平县第二中学2023-2024学年九年级上学期10月月考数学试题陕西省西安市曲江第一中学2023-2024学年九年级上学期月考数学试题广东省广州市南沙区广州外国语学校2020—2021学年八年级下学期期中数学试题河南省新乡市卫辉市2023-2024学年九年级上学期期末数学试题江苏省南通市海门区海门区六甲初级中学2023-2024学年八年级下学期3月月考数学试题黑龙江省大庆市肇源县五校联考2023-2024学年八年级下学期月考数学试题(已下线)第05讲 正方形(3个知识点+5类热点题型讲练+习题巩固)-【帮课堂】2023-2024学年八年级数学下册同步学与练(人教版)广东省广州市育才教育集团2023~2024学年八年级下学期期中数学试题河南省洛阳市西工区2023-2024学年八年级下学期期中数学试题河南省洛阳市洛龙区2023-2024学年八年级下学期期中数学试题广东省江门市棠下初级中学2023-2024学年八年级下学期期中数学试题重庆市秀山县新星中学2023-2024学年八年级下学期数学期中试题
名校
2 . 如图,
是
内一点,
,
,
,
,
、
、
、
分别是
、
、
、
的中点,则四边形
的周长是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff9c7cbcc38b28d45c8539710e5b260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267ace52b64e1e7dfc5211e033255b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb3d1070981fed5ca65a34bb2282e6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c24a968c73e960698a572ab01e3698.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/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
A.9 | B.10 | C.11 | D.12 |
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3卷引用:陕西省西安市曲江第一中学2023-2024学年九年级上学期开学考试数学试题
陕西省西安市曲江第一中学2023-2024学年九年级上学期开学考试数学试题江苏省徐州市铜山区2023-2024学年八年级下学期期中数学试题(已下线)八年级数学期末模拟卷(广东省专用)-学易金卷:2023-2024学年初中下学期期末模拟考试
名校
3 . 如图,在
中,点
是
的中点,对角线
,
相交于点
,连接
,若
的周长是
,则
的周长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd5a1e516644950ef35eafd859b262f1.png)
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12卷引用:2023年山西省吕梁市孝义市中考三模数学试题
2023年山西省吕梁市孝义市中考三模数学试题2023年山西省孝义市中考三模数学试题(已下线)专题01 平行四边形的性质和判定(八大类型)(题型专练)-2023-2024学年八年级数学下册《知识解读·题型专练》(人教版)(已下线)专题03 平行四边形的性质和判定(八大类型)(题型专练)-2023-2024学年八年级数学下册《知识解读·题型专练》(苏科版)湖南省永州市道县2023-2024学年八年级下学期月考数学试题广东省江门市福泉奥林匹克学校2023-2024学年八年级下学期月考数学试题广东省珠海市斗门区实验中学2023-2024学年八年级下学期期中数学试题(已下线)专题02 平行四边形的性质和判定(七大类型)(题型专练)-2023-2024学年八年级数学下册《知识解读·题型专练》(浙教版)(已下线)专题01平行四边形的性质和判定(六大类型)(题型专练)-2023-2024学年八年级数学下册《知识解读·题型专练》(北师大版)2024年广东省中山市纪中、纪雅、三鑫九年级中考三模数学试题(已下线)专题6.7 三角形的中位线(分层练习)-2023-2024学年八年级数学下册基础知识专项突破讲与练(北师大版)甘肃省武威市凉州区凉州区金沙镇九年制学校2023-2024学年八年级下学期期中数学试题
4 . 如图,在
中,点D在
上,
,
于点M,N是
的中点,连接
,若
,则
为( )
![](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/c4dd6e7c88601b4c50b06f1238fdd95d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bb350b8e577a7b6712031a3b5b98309.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/d9fe42fb1a9602d9881331f705217eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
A.3 | B.4 | C.1 | D.2 |
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7卷引用:宁夏回族自治区吴忠市利通区第三中学2022-2023学年八年级下学期期中数学试题
宁夏回族自治区吴忠市利通区第三中学2022-2023学年八年级下学期期中数学试题2024年陕西省商洛市山阳县中考一模数学试题安徽省合肥市庐江县汤池镇初级中学2023-2024学年八年级下学期期中数学试题河南省信阳市息县2023-2024学年八年级下学期期中数学试题内蒙古通辽市科尔沁左翼中旗联盟校2023-2024学年八年级下学期期中考试数学试题(已下线)专题6.16 平行四边形(常考核心知识点分类专题)(基础练)-2023-2024学年八年级数学下册基础知识专项突破讲与练(北师大版)陕西省咸阳市永寿县2023-2024学年九年级下学期期中数学试题
5 . 如图,在四边形
中,E、F分别是
、
的中点,G、H分别是
、
的中点,依次连接E、G、F、H得到四边形为________ 形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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4卷引用:2023学年广东省佛山市禅城区四校联考中考三模数学试题
2023学年广东省佛山市禅城区四校联考中考三模数学试题陕西省榆林市子洲县周家硷中学2023-2024学年九年级上学期开学数学试题江苏省常州市溧阳市2023-2024学年八年级下学期期中数学试题(已下线)专题6.6 三角形的中位线(知识梳理与考点分类讲解)-2023-2024学年八年级数学下册基础知识专项突破讲与练(北师大版)
6 . 如图,在四边形
中,
,
,
分别是
,
的中点,且
,连接
.
的度数;
(2)若
,
比
长
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70d9fce8285e9134f63924be5cd8770f.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d84928a0e31110f86560d7f999866a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a72dfbf0138a611174c36ce077e0c47.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c24a968c73e960698a572ab01e3698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
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3卷引用:陕西省商洛市商南县湘河镇初级中学2022-2023学年八年级下学期4月期中数学试题
陕西省商洛市商南县湘河镇初级中学2022-2023学年八年级下学期4月期中数学试题广西壮族自治区防城港市上思县2023-2024学年八年级下学期期中数学试题(已下线)专题6.6 三角形的中位线(知识梳理与考点分类讲解)-2023-2024学年八年级数学下册基础知识专项突破讲与练(北师大版)
名校
7 . 如图,在
中,
,
分别为
,
的中点,点F在线段
上,且
.若
,
,则
的长为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/f52a58fbaf4fea03567e88a9f0f6e37e.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/4c507610f462120218e2cd1894c957eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae8221601c7bd5c51fd520615581fa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
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9卷引用:北京师范大学实验中学2022-2023学年九年级数学统测6试卷
名校
8 . 如图,
中,
是
中点,
是
的平分线,
交
于
.若
,
,则
的长为( )
![](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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d354155f71a1736c1c9186168695edd.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/e3f3ddc1c05906d037a3fd793e1c4ab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30912a21aa3d8412f8e020e13ce4cd10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
A.11 | B.12 | C.13 | D.14 |
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9 . 如图抛物线
与
轴交于
、
两点,与
轴交于点
,点
是抛物线对称轴上任意一点,若点
、
、
分别是
、
、
的中点,连接
、
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0781a9acdedd45dbdf6855f91ead86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/506bbc434d386f2d8e10607b70c56c18.png)
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10 . 如图,在
中,
,以
为直径作半圆,交
于点D,连接
,过D作
,垂足为E.
;
(2)求证:
为
的切线.
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffd657e48b15b9b54a55817e2c26b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd95dc30c0344788b94289c464a3158e.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
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