1 . 如图,在四边形
中,
,
, 对角线
与
相交于点O.
![](https://img.xkw.com/dksih/QBM/2024/1/5/3404666167910400/3452775586840576/STEM/e89453e92ffa4b839bef0264444a767a.png?resizew=140)
(1)求证:四边形
是平行四边形;
(2)若
,求证:
;
(3)在(2)的条件下,过点B作
交
于点
,若
,
,求
的长.
![](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/7163770743403741f417ca6b73ab786f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/2024/1/5/3404666167910400/3452775586840576/STEM/e89453e92ffa4b839bef0264444a767a.png?resizew=140)
(1)求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6717f145fbe0d0db28a62acbff8a34b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfc1f76257275ab4b04f9bc913535670.png)
(3)在(2)的条件下,过点B作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f9cb93947d668d2e054348103f8bf3.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/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b74e2b6dae540571fdd509c4e966b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
您最近一年使用:0次
2 . 如图,
和
是以点
为直角顶点的等腰直角三角形,把
以
为中心顺时针旋转,点
为射线
、
的交点.若
,
.
与
的数量关系是_____;位置关系是_____.
(2)如图2,当点
在
的延长线上时,求
的长;
(3)在旋转过程中,当线段
时,求
的长.(请自己作图解决)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
(2)如图2,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c884b508394b3ab50734b584d9ec783c.png)
(3)在旋转过程中,当线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5611470e86c8d1788987e925b7ce2a78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
您最近一年使用:0次
3 . 如图所示,在
中,
,
相交于点O,E是
的中点,连接
并延长交
于点F,已知
,则下列结论:①
;②
;③
;④
.其中一定正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.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/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c843d93652028bc4e17662fff27c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d137ad180d729cf3aa2057528510b48d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a5a689549ff4f1c3cdd41052fe7222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b77c9c19383824a7a2e1e5db2b7d24d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4eadca1e53d1d3e732b3917a864fcfe.png)
A.①②③④ | B.①④ | C.②③④ | D.①②③ |
您最近一年使用:0次
2024-03-05更新
|
101次组卷
|
5卷引用:贵州省铜仁市第五中学2023-2024学年九年级上学期12月月考数学试题
贵州省铜仁市第五中学2023-2024学年九年级上学期12月月考数学试题河北省石家庄市第十三中学2021-2022学年九年级上学期月考数学试题浙江省Q21教学联盟2023-2024学年九年级上学期1月学情调查数学试题27.2.2 相似三角形的性质(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)
4 . 如图,一次函数
的图象与
轴,
轴分别交于
,
两点,与反比例函数
的图象分别交于
,
两点,已知点
坐标是
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/5d213600-e95d-427a-860b-5ed356ad73c5.png?resizew=195)
(1)求一次函数
和反比例函数
的解析式;
(2)直接写出不等式
的解集;
(3)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c143e0781facdd4e4b6db9854e0ad2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/eb79a1b0c6dc78e6de17de6bed477fb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e194aba3710705f9c8c68cbc3e7af6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/5d213600-e95d-427a-860b-5ed356ad73c5.png?resizew=195)
(1)求一次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c143e0781facdd4e4b6db9854e0ad2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb79a1b0c6dc78e6de17de6bed477fb1.png)
(2)直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b466dd64404474c90a568552b4a6d0a4.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a9a6eeeebf3cff569578d7366b755aa.png)
您最近一年使用:0次
5 . 已知如图,在
中,点D是
边上一个动点,连接
,在
的右侧作
,
边交
于点E,当点D在
边上运动时(点D不与点A、点B重合),始终保持
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/5d088476-f05e-4633-a771-19631ac9be45.png?resizew=165)
(1)你能否再添加一个条件,使
;
(2)在(1)的条件下,当
,
,
时,求A、D两点之间的距离.
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d19f963f7c803bcfcbb265ec6d4304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.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/9bebf7cd7e9a10410f74901c2279546b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/5d088476-f05e-4633-a771-19631ac9be45.png?resizew=165)
(1)你能否再添加一个条件,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f7650964ab5e8e20673939a9739f83.png)
(2)在(1)的条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f218914337edd06e59e75d90b777e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
您最近一年使用:0次
6 . 已知如图,
中,
,
,
,E、F分别是边
上的动点,点E从A向B匀速运动,点F从B向C匀速运动,E、F运动速度均为
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/794a8ee4-4822-4d59-8802-8c577d9f7e14.png?resizew=126)
(1)求
的长;
(2)当点E与点F同时开始运动,t秒后,
(点E与点C是对应点),请求出t的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52d4bc1be051f904d4a6e06dc825395b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6beb17d468d0e90f9c08a8dbbc05541.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3355e2fa0ac6c675f02ee36c3ced4f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b9174c3b1324cf81098e42e0480bcc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef788098369b8fac1f4674cae70aa22.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/794a8ee4-4822-4d59-8802-8c577d9f7e14.png?resizew=126)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)当点E与点F同时开始运动,t秒后,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/734f1ca048a5c2d75a7a6163c55258bd.png)
您最近一年使用:0次
7 . 如图,在平行四边形
中,点E在边
上,连接
并延长交
的延长线于点F,若
,那么下列结论中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/2/9b5daf5b-b342-4da3-8773-d4f0784ca62a.png?resizew=118)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2e924b480c0097d4072aed454f5fa8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/2/9b5daf5b-b342-4da3-8773-d4f0784ca62a.png?resizew=118)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 在
中,
,
,
,将
绕点C逆时针旋一个角度
得到
,连接
,
.
(1)如图①,当
时,求证:
;
(2)如图②,当
时,点
在
上,
的延长线交
于点P,请确定
与
的位置关系,并说明理由;
(3)如图③,当
时,如果![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17288da70b31823293794cb289e3123.png)
,连接
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56667ecdd31b9fbd05deb9626c574f84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018af6682b038cfdf6ed136943413271.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ed7bc83ebd009c5a7f58116eb8f5d8f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/d3507f9f-bedc-408b-be84-2d5dfb8c1eee.png?resizew=427)
(1)如图①,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/708d48b595c17d4dccf9b4086d7e664e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/883bf9d1b347011675fe169dfce7130b.png)
(2)如图②,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ac762a2899a58faa0d3ab44f1281fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b10100be43f77a13fa0ccd1c1d72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018af6682b038cfdf6ed136943413271.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ed7bc83ebd009c5a7f58116eb8f5d8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018af6682b038cfdf6ed136943413271.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ed7bc83ebd009c5a7f58116eb8f5d8f.png)
(3)如图③,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13b5ea2fc43b19ca043581eb94197234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17288da70b31823293794cb289e3123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4745d21979bb1e2a5c14e7eee49cc75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932c1e7b8e4167bda4c7b2b9123fac0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932c1e7b8e4167bda4c7b2b9123fac0c.png)
您最近一年使用:0次
9 . 如图,在
中,点D、E、F分别在
,
,
边上,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/17/002a50aa-377f-4bd4-b3ab-b004d94784b7.png?resizew=194)
(1)求证:
;
(2)设
,若
,求线段
的长.
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105068b25f5a63af32f4082cfe08691e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c197d8b99f2eb7477947e53461b5d548.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/17/002a50aa-377f-4bd4-b3ab-b004d94784b7.png?resizew=194)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2742689197bff3f9b28a093891f57c81.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aa674a0108d37a8fb29abbd3d95123f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b939af5ba06e279cce39396aaf0fae06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
您最近一年使用:0次
10 . 如图,
的顶点
在y轴上,
两点都在x轴上,将边
向右平移,平移后点
的对应点为D,点
的对应点为
,线段
交AC于点
,若
,则点
的坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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