名校
1 . 如图,四边形
的对角线
,
相交于点
,
,
,则下列说法错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/9a23f35ebcd9799d82c1e41c09781a4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dceb5cc71fc50f20649f6b9535fd914.png)
A.若![]() ![]() |
B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
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2024-06-06更新
|
369次组卷
|
4卷引用:2024年安徽省亳州市谯城区中考三模数学试题
2024年安徽省亳州市谯城区中考三模数学试题(已下线)考题猜想9-1 中心对称图形-平行四边形(培优+拔尖,12种题型)-2023-2024学年八年级数学下学期期末考点大串讲(苏科版)2024年广东省深圳市宝安中学中考三模数学试题(已下线)浙江省八年级数学下学期期末模拟试卷02-2023-2024学年八年级数学下学期考试满分全攻略高频考点+重难点讲练与测试(浙教版)
2 . 如图,小华同学不慎将一块平行四边形玻璃打碎成如图所示的四块,为了能从商店配到一块与原来相同的玻璃,他带了其中两块玻璃去商店,其编号应该是( )
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 下列命题的逆命题中,是真命题的个数有( )
①如果两个实数相等,那么它们的绝对值相等;②全等三角形的对应角相等;③对顶角相等;④平行四边形的对角线互相平分
①如果两个实数相等,那么它们的绝对值相等;②全等三角形的对应角相等;③对顶角相等;④平行四边形的对角线互相平分
A.0个 | B.1个 | C.2个 | D.3个 |
您最近一年使用:0次
4 . 如图,在
中,
是
边上一动点,过点
作
的平行线,交
的平分线于点
,交外角
的平分线于点
.
;
(2)连接
,
,当点
沿
移动到
的中点时,四边形
是什么特殊四边形?说明理由.
(3)若点
是
边的中点,四边形
是否能成为正方形?如果能,对
有什么要求?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/302efd5266f7868d8c67f7bb09dc2ddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb8eca20ce2c918ea4034ea15210c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc2dba7e5cfe169358eff7f4e247d61.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/910936ec9fb419d51ce2f5ea817f8401.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/910936ec9fb419d51ce2f5ea817f8401.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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5 . 在菱形
中,
,
相交于点
,过
,
两点分别作
,
的平行线,相交于点
.请你判断四边形
的形状,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88047f00ecbeea226344279b7b3d23b5.png)
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6 . 如图,在
中,分别以
为边在
的同侧作等边三角形
,等边三角形
,等边三角形
,连接
.
是平行四边形;
(2)探究下列问题:(只填满足的条件,不需证明)
①当
满足条件______时,四边形
是矩形;
②当
满足条件______时,以
为顶点的四边形不存在.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942e6dafcfcbf0682856b9f25178694d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09d9d486b7f91ba933210dd013a7f2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9506adf67d4563138dfeb21365b1ba22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe65a9d11595427706080b3e9f8d68b.png)
(2)探究下列问题:(只填满足的条件,不需证明)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe65a9d11595427706080b3e9f8d68b.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecde9f103d40001f241a29f2137b2f44.png)
您最近一年使用:0次
名校
7 . 综合实践课上,嘉嘉设计的“利用直角三角形作矩形”的尺规作图过程如下
根据嘉嘉尺规作图痕迹,完成下面的证明.
证明:
,
,
四边形
是平行四边形(①__________)(填推理依据).
又:
,
四边形
是矩形(②__________)(填推理依据).
①②应该填的内容分别是( )
分别以点![]() ![]() ![]() ![]() ![]() ![]() ![]() | 作射线![]() ![]() ![]() ![]() | 连接![]() ![]() |
证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a01af7ec5a2bf06615df678cb85bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce05f91ce17863abc8a5a8f6002b75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
又:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6808b55943e0ab815da922bf1b095e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
①②应该填的内容分别是( )
A.有一个角是直角的平行四边形是矩形、对角线互相平分的四边形是平行四边形 |
B.对角线相等的平行四边形是矩形、对角线互相平分的四边形是平行四边形 |
C.对角线互相平分的四边形是平行四边形、对角线相等的平行四边形是矩形 |
D.对角线互相平分的四边形是平行四边形、有一个角是直角的平行四边形是矩形 |
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8 . 如图,在四边形
中,
,
平分
,
平分
,
,则四边形
的形状( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c220eadc312101e2fb89dfe920f7b30d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61fe81d0b136fc2acc97ab50ffbf6edf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.一定是平行四边形 | B.一定是矩形 | C.一定是菱形 | D.不确定 |
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9 . 在矩形
中,M,N,P,Q分别为边
,
,
,
上的点(不与端点重合),对于任意矩形
,有下面四个结论:
①存在无数个四边形
是平行四边形;
②存在无数个四边形
是矩形;
③存在无数个四边形
是菱形;
④存在无数个四边形
是正方形;
所有正确结论的序号是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
①存在无数个四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/389bc3f29c058067e06e0d0d2be399da.png)
②存在无数个四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/389bc3f29c058067e06e0d0d2be399da.png)
③存在无数个四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/389bc3f29c058067e06e0d0d2be399da.png)
④存在无数个四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/389bc3f29c058067e06e0d0d2be399da.png)
所有正确结论的序号是
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2024·河南驻马店·三模
10 . 综合与实践.
问题情境:
在综合与实践课上,老师让同学们以“三角形的旋转”为主题开展探究活动.如图15,在
中,
,
,
,
为斜边
的中点,将与
全等的
绕点
旋转得到
.
操作发现:
(1)如图①,顺时针旋转一定角度,记
和
分别与
交于点E,F,当
时,猜想
和
的数量关系为______,并证明你的猜想;
(2)如图②,继续旋转一定角度,当线段
经过点B时,连接
,试判断四边形
的形状,并证明你的结论;
实践探究:
(3)在整个旋转过程中,当
在
下方,且
的直角边恰好与
垂直时,设线段
与直线
交于点G,直线
交射线
于点H,连接
,请直接写出
的长.
问题情境:
在综合与实践课上,老师让同学们以“三角形的旋转”为主题开展探究活动.如图15,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bde9258da29e3517635b1c7ef239edf.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/6b185184dc2dc3894a0313fd13f26a59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec1777a5327cb01550a2c942aeed166.png)
操作发现:
(1)如图①,顺时针旋转一定角度,记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a21897349d3d7c94419692106887153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55f31213ce9759756dda235a1c28ccc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0405ec053a15ff7162aaebc96c9d60b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71fe246270d1277f9eb2bf15af22e83.png)
(2)如图②,继续旋转一定角度,当线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a21897349d3d7c94419692106887153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b56a6468e3be2aec650f33674503cc7a.png)
实践探究:
(3)在整个旋转过程中,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec1777a5327cb01550a2c942aeed166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec1777a5327cb01550a2c942aeed166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55f31213ce9759756dda235a1c28ccc8.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/71b63d2504bd3ecce8c10560b142356f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f20d5c537dfa0b53484744c7001233c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f20d5c537dfa0b53484744c7001233c4.png)
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