2023八年级上·全国·专题练习
1 . 在
中,
,点
在
上,
垂直平分
,交
于
,
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/2023/10/6/3340079044861952/3340177992695808/STEM/9228c25a4cc848bba69c79c7d4387f70.png?resizew=130)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6060d9a82ed5405a1ea8cd824448b6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e4280be91682e5d8a0d0704190319bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/2023/10/6/3340079044861952/3340177992695808/STEM/9228c25a4cc848bba69c79c7d4387f70.png?resizew=130)
A.4 | B.3 | C.![]() | D.![]() |
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2 . 如图,四边形
中,
,
,
,
,则段
长度取值范围为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104cacf19f1897c6c86d24c5fe8cb991.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1726d522daf2b72c68a605384d9478.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/13/d909b167-4833-4bbe-8356-8292ccc7dc15.png?resizew=163)
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名校
3 . 如图,矩形
中,点
在
上,
上的点
在
的垂直平分线上,连接
、
,
平分
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1642eec556eb252de9c1ab7bb5ca90b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2ee75a234ac05a3225e49ddd8c5065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc0c79bcb4adbd52156cecae1b588f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb80254d3581bf660a0bfd376de9dc01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/13/bb67c1db-2c27-4205-ad7c-e9b8ec0925cd.png?resizew=192)
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2023八年级上·全国·专题练习
4 . 如图,
中,
,分别以点A和点C为圆心,以大于
的长为半径作弧,两弧相交于点M和点N,作直线
,分别交
,
于点E和点F.若
,
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/2023/10/6/3340079037169664/3340376459182080/STEM/3498e1ca9cb7442c8f9b2699459ce41e.png?resizew=187)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9142db4dd2ef151bf3d4a63afb61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93148adbc6e856da9a9d263f485d003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.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/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d649afbddd907f0dfec1420f02f82fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/2023/10/6/3340079037169664/3340376459182080/STEM/3498e1ca9cb7442c8f9b2699459ce41e.png?resizew=187)
A.3 | B.4 | C.5 | D.6 |
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2023八年级上·全国·专题练习
5 . 老师设计了“谁是卧底”游戏,用合作的方式描述下面的题目:
“如图,在
中,
,点D是
的中点,
交
于E;点O在
上,
,
,
”,
甲说:
;
乙说:
;
丙说:
为等边三角形;
丁说:过点O作
,可以求出
.
若四个描述中,只有“卧底”的描述是错误的.则“卧底”是( )
![](https://img.xkw.com/dksih/QBM/2023/10/6/3340079051866112/3340321766481920/STEM/55ac8f2c17b5400182c7aad063fcbf00.png?resizew=109)
“如图,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e744f480e11f588570c5d6738799f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68fbbd17c89f03dbb61cd6ffdb9a0344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fca3734de79f7f50b552ef62b29dc7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90bd1ffa355edcdc023b5a6b47ca7526.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48813b8fc61cdb0c54fbc6a2e4bbd30b.png)
甲说:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df18b374eb6f9f1cd9473dfe7a84ca6.png)
乙说:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/919460d974005402a92564c51c756cd8.png)
丙说:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
丁说:过点O作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b4fbd9d850ac188f0f926dc5435761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a2a325fa8c7507ac0b688d8e44b732.png)
若四个描述中,只有“卧底”的描述是错误的.则“卧底”是( )
![](https://img.xkw.com/dksih/QBM/2023/10/6/3340079051866112/3340321766481920/STEM/55ac8f2c17b5400182c7aad063fcbf00.png?resizew=109)
A.甲 | B.乙 | C.丙 | D.四个人都不是卧底 |
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6 . 如图,在矩形
中,对角线
相交于点
,
,垂足为
,且
.若
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/2023/9/26/3333133391544320/3333952902774784/STEM/a6fdee546e5b4d0aa9ffc199d669c439.png?resizew=142)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e2d3ea3bdfca7111b823bb1c381a0f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c51c25b65a37b676ae3c3b71c29f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/717e2acbcaf06db8d45acd14dc137920.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beb6823a329628699619a39cde927510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://img.xkw.com/dksih/QBM/2023/9/26/3333133391544320/3333952902774784/STEM/a6fdee546e5b4d0aa9ffc199d669c439.png?resizew=142)
A.![]() | B.![]() | C.![]() | D.8 |
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2023-10-13更新
|
71次组卷
|
2卷引用:陕西省榆林市第十中学2023-2024学年九年级上学期第一次月考数学试题
7 . 如图,
为
内一点,过点
作线段
交
于
、
.
![](https://img.xkw.com/dksih/QBM/2023/10/9/3342403696951296/3345076735131648/STEM/b7ba8cebe9124d63b8904d6967c0107e.png?resizew=214)
(1)若
,
平分
,
平分
,求
的度数;
(2)若
,且
、
分别在
、
的垂直平分线上,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/2023/10/9/3342403696951296/3345076735131648/STEM/b7ba8cebe9124d63b8904d6967c0107e.png?resizew=214)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6459e2ceb32ab5087777d2b7468e2540.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302efd5266f7868d8c67f7bb09dc2ddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac3c1375c64dceef45846308a418cf7f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac3c1375c64dceef45846308a418cf7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23c111d0cf2e209b7e39a6215d4b22a.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
您最近一年使用:0次
8 . 如图,等腰
的底边
长为
,面积为
,腰
的垂直平分线
交
于点
,交
于点
,
为
的中点,
为直线
上的动点.则
周长的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095ab4a92bf822e175d370e6d0c8a730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce019005b5243d67ed1a996d4e752a31.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/2a30f3a8b673cc28bd90c50cf1a35281.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e59b7c0d4a0b312e674b7bb061240b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/17/403db993-e74e-4606-89d3-e4ed0a107996.png?resizew=150)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-10-13更新
|
156次组卷
|
3卷引用:江苏省泰州市部分农村学校2023-2024学年八年级上学期10月月考数学试题(第一次月考)
9 . 如图,在菱形
中,
,取大于
的长为半径,分别以点
,
为圆心作弧相交于两点,过此两点的直线交
边于点
(作图痕迹如图所示),连接
,
.则
的度数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca6fafd473fe3da3c3fc1d4fbc68dea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d49404351575703cfe8325d1352ec9.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35803969509655f72b4118503ae1c966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/20/a8f8101c-0b5f-46a1-9f8e-e9eb055a2c3d.png?resizew=169)
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23-24八年级上·湖北·周测
10 . (1)在
中,
,
是
边上的中线,求中线
长范围___________;
(2)如图,在
中,
是
边上的中线,点
分别在
上,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb7ca870dd167221e00a8deac52249ad.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/03902478df1a55bc99703210bccab910.png)
(2)如图,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/6a373959bb9026f8a09845c0b828bf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5dc62e10004e73908091338362917da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3efffb3e6a571832b723b3c5795b8e8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74aa9a5332ccc8993faa3074ca643224.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/13/0ee13880-ec42-4449-a175-0956530562de.png?resizew=149)
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