名校
1 . 如图,在
中,
,
,
,
边的垂直平分线交
于E,交
于D,F为
上一点,连接
,点C关于
的对称点
恰好落在
的延长线上,则
的长为 __________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.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/60ef95894ceebaf236170e8832dcf7e3.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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/900b844294e8c07ea9a858adb845121c.png)
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10卷引用:重庆市渝中区巴蜀中学校2022-2023学年八年级上学期期末数学试题
重庆市渝中区巴蜀中学校2022-2023学年八年级上学期期末数学试题重庆市第八中学2023-2024学年八年级上学期数学期末模拟试题(已下线)专题18.16 勾股定理(方程思想)(巩固篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(沪科版)(已下线)专题18.22 用勾股定理解直角三角形(知识点分类专题)(巩固篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(沪科版)(已下线)专题17.22 用勾股定理解直角三角形(知识点分类专题)(巩固篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(人教版)(已下线)专题17.16 勾股定理(方程思想)(巩固篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(人教版)辽宁省大连甘井子区第八十中学、第七十六中学2022-2023学年九年级下学期3月月考数学试卷湖南省郴州市2022-2023学年八年级下学期开学考试数学试题(已下线)八年级上学期期末模拟测试卷01-2023-2024学年八年级数学上学期期中期末考点归纳满分攻略讲练(苏科版)(已下线)2023—2024学年名校期末好题汇编(人教版八年级数学下册)——专题二—勾股定理
名校
2 . 当已知三角形一边中点时,我们常通过“倍长中线”来构造全等的两个三角形,从而解决问题.
已知
,点
是
的中点.
(1)如图1,点
在
上,延长
交
于点
,且
,求证:
;小明同学应用倍长中线的方法,延长
至点
,使
,连接
,请你帮助他写出证明过程;
(2)如图2,点
在射线
上,连接
,延长
交
于点
,若
为
的中点,求证:
;
(3)在(2)的条件下,若点
是线段
的中点,
垂直平分线段
,在
上有一动点
,连接
,当
的周长最小时,直接写出
的度数.
已知
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/7aeb203a-0963-4be0-abfa-c4215a74cb47.png?resizew=578)
(1)如图1,点
![](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/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af8bfe298fb2948547723517cd2ec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b59f0e6f7fa9c50e7f5cc146ba1af1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da5710961e98c6811400da2c0b778d7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
(2)如图2,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52041559f8fee18bfa3e2e2ac07c3bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194726b486d1b544f28392cd89ddcbb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68ee1b5f29deb1c42e4ee9370e0a30c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a6f7091bf0bb4b27a436d7cc29ca9d.png)
(3)在(2)的条件下,若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/766c0b7b584766b8b376e89621b4e7c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff9d2abf13c2842f58654abf73c6b4ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a5bbcebfe4655fe2a73b50c002118d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffbb6763c631d9680525050c76218124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4257874d7910eb357589dc1954bdf76.png)
您最近一年使用:0次
2023-12-22更新
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794次组卷
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2卷引用:重庆市九龙坡区育才中学校2023-2024学年八年级上学期数学第七次自主作业
3 . 如图,在
中,
平分
交
于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/4f170d67-72fa-4e13-baf7-54751e36a405.png?resizew=242)
(1)用尺规完成以下基本作图:过点
作
于点
,交
于点
,连接
;(不写作法,不下结论,保留作图痕迹)
(2)求证:
,请根据下列证明思路完成填空:
证明:
____________,
.
于点
,
(____________)
在
和
中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229ad9e4aa38b247f1abf8f938280852.png)
(____________).
____________
是线段
的垂直平分线
(____________)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/4f170d67-72fa-4e13-baf7-54751e36a405.png?resizew=242)
(1)用尺规完成以下基本作图:过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07d6b98ecb4793c9f063f1f6b61caa19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/e6e490f703eb6c9bb1278c78ebc2d661.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ad98ad714864041a632ca949308e417.png)
证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f3d198e76391779fa3badc848c8ac8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/113bffa74ac1e976a5c468ccde2dc860.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f75cd01b3689408ebb2bcea4b25f6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d257e50f224710383ad7a1b2da603d4.png)
在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d671ea595b1a638992a531471ab47c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/022f0dc17db5fcc83b204dc845447ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229ad9e4aa38b247f1abf8f938280852.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b87d978d02e1ccc8112746d456dcbab7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56577eaa2f4ed14e6e4330a801a59293.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a860c6ab2c48b1c458f54fdb23fa8bd.png)
您最近一年使用:0次
名校
4 . 如图,
是
的垂直平分线,
,
的周长是
,则
的周长是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/23/411e758a-3c6b-4853-addc-4a4131bc0283.png?resizew=193)
![](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/7cee49e97546d466ba3ee630e08cdc3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff748d864eeeefef79124c297c0675c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ac5396c5ea442e0364b50c1db3d2da.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/23/411e758a-3c6b-4853-addc-4a4131bc0283.png?resizew=193)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-12-19更新
|
120次组卷
|
2卷引用:重庆市开州区文峰教育集团2023-2024学年八年级上学期12月月考数学试题
名校
5 . 如图,已知四边形
中,
为
边上一点,连接
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/20/57413150-be9b-4eda-bf84-0ad1e2dfcede.jpg?resizew=170)
(1)用直尺和圆规完成以下基本作图:过点
作
的垂线交
于
(保留作图痕迹);
(2)在(1)的条件下,若
,
,
为
的角平分线.
求证:
.完成下列填空.
证明:∵
,
,
①____________,
,
为
的角平分线,
,
②____________,
,
,
即:③____________,
∴
④____________,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/20/57413150-be9b-4eda-bf84-0ad1e2dfcede.jpg?resizew=170)
(1)用直尺和圆规完成以下基本作图:过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e472dea21dbfb4ab929e970d4bcbcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cd9f2ab635fbcde5f49a7919fe0b8a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38968daa1e0f0a5caceb3ede903105ad.png)
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7de19ceb054d778b94d849337d8a02.png)
证明:∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3f5dc11efe60b4fd9a13b1d6b83842.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e472dea21dbfb4ab929e970d4bcbcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8cbe6e341b308d8551751e2c6b3c65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/671c73a48dfce4894545ae665b17f77d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84c38ffc474f45993a7ed1e3cd5da75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579b7a12dffd2b0be7ad5fa4ec9106e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0eccaabe3cd78d3974282019505fb9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/353ab7837467b911fcc5983af6339793.png)
即:③____________,
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a8a9dedc0ea544bcdc304a6f6016aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0268b7417bbdd8a53d0659399a6a8317.png)
您最近一年使用:0次
名校
6 . 如图,在
中,
的角平分线交
于点D.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/18/835d3d0f-2c96-4800-9cd4-c0e2cd6cbdf1.png?resizew=196)
(1)用尺规完成以下基本作图:作
的垂直平分线,分别与
交于点E、点F、点H,连接
;(保留清晰作图痕迹,不写作法,不下结论)
(2)在(1)所作的图形中,完成下面证明
的过程.
证明:∵
的角平分线交
于点D,
∴
.
∵
垂直平分
,
∴
.
∴∠
.
∴ .
又∵
,
∴
(
).
∴
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/18/835d3d0f-2c96-4800-9cd4-c0e2cd6cbdf1.png?resizew=196)
(1)用尺规完成以下基本作图:作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad50484ce9580edd9aa74e147044cce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(2)在(1)所作的图形中,完成下面证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f02f42443462be931e121e86171df8e2.png)
证明:∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494ba20b1444f524cf636961e4688ae8.png)
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3710e0e291858d4b5f333911aa345e2.png)
∴∠
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7cf6b495555a550d5d534f32b9f5148.png)
∴ .
又∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34336629db1e6c508fdca5bb8c434d4c.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e42d83748ebc0f3169c21f7605134f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4351a730f61bb998bab8f0b7848912d7.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2c59b45364d2cb0ae7048c861e7c22.png)
您最近一年使用:0次
名校
7 . 如图,直线
,线段
分别与直线
、
交于点
、点
,满足
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/16/2d84ceda-9927-4bc2-9746-fa3bdd38277d.png?resizew=195)
(1)使用尺规完成基本作图:作线段
的垂直平分线交
于点
,交
于点
,交线段
于点
,连接
、
、
、
保留作图痕迹,不写作法,不下结论);
(2)求证:四边形
为菱形(请补全下面的证明过程),
证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f3d198e76391779fa3badc848c8ac8.png)
,
______①,
垂直平分
,
,
,
______②
,
______③,
,
,
,
四边形
是 ______④,
,
四边形
是菱形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e03566282ef39ad17821036f228174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7159d113d1301b49171e736384f00131.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/16/2d84ceda-9927-4bc2-9746-fa3bdd38277d.png?resizew=195)
(1)使用尺规完成基本作图:作线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8946331b0a9d86e1a9c78797f3021455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a679040c4d556723e482bacbab41356d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93dd4d854fbc236bccbd97a5d715fe97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc53882f1044379aa1e97058ec270bb4.png)
(2)求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/015572e6a2862542050c335211b3d0f2.png)
证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f3d198e76391779fa3badc848c8ac8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e03566282ef39ad17821036f228174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51a68009f72334317d070b3b95d72f19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fb6acdcab687e9e1c279f39d3d08f60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d3236110357d25c22bbc64bd7ecf4b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97bccad388b030ba654cf2994e412cd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f04885afb1c5eac1980e1062737bb7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62b5745ab14859a65d8160de62e785c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5b6c8b77770c1c350060e891e4c2294.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16798b9a7e95b6adeb95e18f960f2e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/456859f994b8766323823c0ff3a9c440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/015572e6a2862542050c335211b3d0f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c48f615291ac9ea67d6a5279b5ebc74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/015572e6a2862542050c335211b3d0f2.png)
您最近一年使用:0次
2023-12-16更新
|
302次组卷
|
4卷引用:2023年重庆市开州区书院教育集团中考一模数学试题
2023年重庆市开州区书院教育集团中考一模数学试题(已下线)专题25 尺规作图+补全证明过程(35道)-学易金卷:5年(2019-2023)中考1年模拟数学真题分项汇编(重庆专用)重庆市沙坪坝区第八中学校2023-2024学年九年级上学期期末数学模拟试题河南省郑州市郑州二中附属学校2023-2024学年上学期九年级第三次考试数试题
23-24八年级上·江苏·周测
名校
8 . 如图,在
中,
于点D,
垂直平分
,交
于点F,交
于点E,连接
,且
.
(1)若
,求
的度数;
(2)若
的周长为
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.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/60ef95894ceebaf236170e8832dcf7e3.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/48a277db452e76240ec83ec6a2864bdd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/30/d51c10cc-99c1-43ae-98c1-c1f3199f0717.png?resizew=177)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34fb900d14718e4a47eb9d8a17b0dd8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d062e2fd70631fac39b0fd23963dfbab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63c2a7ec84e71656744ebf332a7e647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
您最近一年使用:0次
2023-12-15更新
|
161次组卷
|
5卷引用:重庆市璧山中学2023-2024学年八年级上学期第二次大作业数学试题
重庆市璧山中学2023-2024学年八年级上学期第二次大作业数学试题(已下线)江苏省泰州市姜堰区第四中学2023-2024学年八年级上学期数学独立作业10.17福建省厦门集美中学2023-2024学年八年级上学期期中数学试题广西壮族自治区北海市合浦县2023-2024学年八年级上学期期中数学试题山东省德州市宁津县苗场中学2023-2024学年八年级上学期期中数学试题
名校
9 . 如图,等腰
底边
的长6,面积是27,点
是
边的中点,腰
的垂直平分线
交
于M,交
于点F,则
的值为______ .
![](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/8455657dde27aabe6adb7b188e031c11.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/49b50357a6545cae8348e3059312f520.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/65c8c210650b91825d919c5cc1cf0ae6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/14/28b25820-896c-409c-a303-4ebf1c3d3ad7.png?resizew=135)
您最近一年使用:0次
名校
10 . 如图,在四边形
中,
,
.连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/4cb1251c-a639-4d49-839c-eecc484ec08f.png?resizew=146)
(1)尺规作图:作线段
的垂直平分线交
于点
,交
于点
,连接
(不写作法,保留作图痕迹);
(2)在(1)所作图中,证明四边形
为菱形,完成下列填空.
证明:
垂直平分
,
______.
,
,
,
,
(______),
,
______,
即
,
,
,
,
四边形
是______.
______.
四边形
为菱形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c9a6255f54f395572a922c801aa490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fe2f6543e06a25493855fbbc648be6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4734f8762e319e2cbfab14a4c33d6fc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/4cb1251c-a639-4d49-839c-eecc484ec08f.png?resizew=146)
(1)尺规作图:作线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(2)在(1)所作图中,证明四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d70676406f26d339465fe3473c0c05.png)
证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/173f7d26d069c0f16a0f6fcb517aa28c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a38fd83dfc94e5fe5c3f25b65d5421ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc8a5d95c1c83ba3f864d21dc137c32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72d5121781ff8904d4b773bff09f2d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec2ae9575d7c560cab4a539f94f2f4fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1417ac94aab33868a59af264696837f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b89055d5aec1cfa7a585370c6c88f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ae68aba89ee15a23b86e2d13beaa638.png)
即
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c525e0682103065f1ab3ae07b6b8c9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a8eaaa115efdd0d26f557796e08f29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb3d486ca93d0c9fe72d8f7d263cb92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dce3f0098abc84ec773058fe7477642b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d70676406f26d339465fe3473c0c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f20b0e68ca181f1d3611715c0f0b010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d70676406f26d339465fe3473c0c05.png)
您最近一年使用:0次