1 . 如图,在四边形
中,
,
于点
,点
是
延长线上一点,
,
于点
.
是菱形;
(2)若
平分
,
,
,求
和
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd95dc30c0344788b94289c464a3158e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70734a8e672376bb0bd1522e229f86a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3aa1da9eef031c9562154530cbafb33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb91cb9a5a14169845d700fbd95890ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6bfad3f7e65188bcf7f62ea5acdbf4a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6344778ed1e75c1a99e2268468081867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ba1df94176a1f769c7a0a12bf357fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d2231c7a2875ab6d423dff3ead4069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
2024-01-30更新
|
87次组卷
|
3卷引用:陕西省西安市经开区区联考2023-2024学年 九年级上学期期末数学试题
2 . 如图1,
是
的外接圆,且满足
,
平分
交
于点
、交
于点
.
;
(2)如图2,若点
是
的中点,求
的度数;
(3)如图3,连接
,若
,
①求
的值;
②若
半径为
,则
_______.(用含
的代数式表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4c2bb71eef69856c4c0f51894b70a4c.png)
(2)如图2,若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8192018a58bb1fe23769a48a4d9042ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23dc2d2dd56fcc67698c45a6e0e48f80.png)
(3)如图3,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6c6426f8f8826f3f15e20fda9e1cfe.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9653181f37e6e4d7c193e0811c3a68d5.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3adb9453a2cd3d5b821d55d8c4e151c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
您最近一年使用:0次
3 . 如图
,在
中,
,
,
,如果点
由点
出发沿
方向向点
匀速运动,同时点
由点
出发沿
方向向点
匀速运动,它们的速度均为
,连接
,设运动时间为
,解答下列问题:
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/94c3df3b-df60-4623-b80c-5306241f0e53.png?resizew=280)
(1)用含
的代数式表示
______,
______;
(2)设
的面积为
,当
为何值时,
取得最大值,
的最大值是多少?
(3)如图
,连接
,将
沿
翻折,得到四边形
,当四边形
是菱形时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28f9fc63aeaac7f7e359f1bcd734a90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a81d63da32eb9501a0099ee7fd8df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b9174c3b1324cf81098e42e0480bcc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a8736fe00b3d7c0ab2524c883df78d0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/94c3df3b-df60-4623-b80c-5306241f0e53.png?resizew=280)
(1)用含
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebbc9c4e4db6374d5ba4c5dec8747442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/524f25e1eedbfe399f7f42db890ab89a.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(3)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b51ece6bb53c3f5bf2da7d9ee5960e44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350e954f629c1901a5cec03558319e46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c534c83cd0bd3ca49ad2a83fb17fed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c534c83cd0bd3ca49ad2a83fb17fed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
4 . 如图,在
中,
,
,点D在
上,
,连接
,
,点P是边
上一动点(点P不与点A,D,C重合),过点P作
的垂线,与
相交于点Q,连接
,设
是x,
与
重叠部分的面积为S.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/9/d2107263-b11d-423b-b758-88ea69a79cf4.png?resizew=327)
(1)求
的长;
(2)求S关于x的函数解析式,并直接写出自变量x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.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/eca7e1a727ba332984ad857b3d25344d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f855c80172c04310d342f82d960011ac.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3525ddc5153fada64eaf14e50b536542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a138fefcb02cc063b48967c0fc9d28f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/9/d2107263-b11d-423b-b758-88ea69a79cf4.png?resizew=327)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)求S关于x的函数解析式,并直接写出自变量x的取值范围.
您最近一年使用:0次
5 . 如图,在矩形
中,
,
,E是边
上一点,连接
,过点B作
于点G,交
于点F.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/a7b76dd2-4709-4c9e-95ed-6161a490d063.jpg?resizew=147)
(1)当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e80bb0f244f283cd4c3faf809ba488d.png)
___________ .
(2)连接
,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb91cb9a5a14169845d700fbd95890ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/a7b76dd2-4709-4c9e-95ed-6161a490d063.jpg?resizew=147)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60634341a9603e24b2bbc6960abe3d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e80bb0f244f283cd4c3faf809ba488d.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
您最近一年使用:0次
6 . 如图,
的直径
,M是
上一点,过点M作弦
.若
,
,则弦
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/afb21772-72cb-43e9-8bf7-7ea2fe93d4d9.png?resizew=137)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.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/810fee760e06028fb7d37e65db79bfa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a57b2c928c267d3fb111dabfda8235c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/afb21772-72cb-43e9-8bf7-7ea2fe93d4d9.png?resizew=137)
A.7 | B.8 | C.![]() | D.![]() |
您最近一年使用:0次
7 . 如图,在
中,D是边
上一点,
,则下列说法错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/c3ead248-7093-4c4e-9699-5fcc15e7b55d.png?resizew=143)
![](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/dcd6fe78f6cfdfefd6d8be45473b25b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/c3ead248-7093-4c4e-9699-5fcc15e7b55d.png?resizew=143)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 如图,抛物线
与x轴交于A,B两点,点
且
,与y轴交于点C,连接BC,D为第一象限内抛物线上一动点,过点D作
于点E,与AC交于点F,设点D的横坐标为m.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/c97a5834-1174-4672-9aa8-a0fd89ee34e1.png?resizew=264)
(1)求抛物线的表达式;
(2)求
面积的最大值及此时D点的坐标;
(3)抛物线上是否存在点D,使得以点O、D、E为顶点的三角形与
相似?若存在,求出m的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0d44326c214c7a5ecc3068a29ec96f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d1e4a02f6a99a4b838dcaf9541d7f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3abef063e1692494fd4769d100f044b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/504cf35247693ceb766c3b85a4ab2a08.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/c97a5834-1174-4672-9aa8-a0fd89ee34e1.png?resizew=264)
(1)求抛物线的表达式;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
(3)抛物线上是否存在点D,使得以点O、D、E为顶点的三角形与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7ffcd1925a2b1259221c6a476152f7.png)
您最近一年使用:0次
9 . 某校数学兴趣小组测量校园内旗杆的高度,活动记录如下:
(1)补全小明求解过程中①②③所缺的内容;
(2)请你根据方案二求出旗杆的高度(结果精确到
).(参考数据:
,
,
)
活动任务:测量旗杆的高度 【步骤一】设计测量方案 小组成员讨论后,画出两种测量方案的图形,如图1,图2.
|
【步骤二】准备测盘工具 筷子,皮尺和测倾器,如图3.皮尺的功能是直接测此任意可达到的两点间的距离;测倾器(由度盘,铅锤和支杆组成)的功能是测量目标物的仰角或俯角 |
【步骤三】实地测量并记录数据 方案一:利用镜子的反射(测量时,所使用的平面镜的大小和厚度均忽略不计,根据光的反射定律,反射角等于入射角,法线 ![]() ![]() 测量过程: 小明将镜子放在距离旗杆 ![]() ![]() ![]() ![]() ![]() 求解过程: 由测量知, ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() 方案二:如图2,小亮在测点D处安置测倾器,测得旗杆顶端B的仰角 ![]() ![]() ![]() |
(1)补全小明求解过程中①②③所缺的内容;
(2)请你根据方案二求出旗杆的高度(结果精确到
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfaa19eeaf415ed419e77fe92794f443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e64af7db160bf3a54479696d7b61105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a157f722b20bca72c2713c4d45fd8e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd229f3f3bb77e8847dac9b8bbb39d0.png)
您最近一年使用:0次
2024-01-30更新
|
247次组卷
|
5卷引用:福建省漳州市2023-2024学年九年级上学期期末数学试题(北师大版A卷)
福建省漳州市2023-2024学年九年级上学期期末数学试题(北师大版A卷)福建省漳州市2023-2024学年九年级上学期期末(北师大版B卷)数学试题2024年辽宁省抚顺市望花区九年级中考三模数学模拟试题2024年山东省枣庄市薛城区中考二模数学试题(已下线)2024年江苏省连云港市中考数学真题变式题22-27题
10 . 如图,在
中,
,
,D为边
上一点,
于E,连接
并延长交
于F.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/e2bbfaa1-fb13-4007-8613-d537c08e96ed.png?resizew=206)
(1)若
,
,求
的长;
(2)若
,求证:
.
(3)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a45b04cc3e5adaeff6f9e01e29032803.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/e2bbfaa1-fb13-4007-8613-d537c08e96ed.png?resizew=206)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0761165f1176f3a5fe4f7b052832316d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82773737609e65dea3c5c67099f1b10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15416b74b2ecbcfa38cf34a9ffff730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02816311aebc9c6c4e110d595ce1b037.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15416b74b2ecbcfa38cf34a9ffff730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/114a2e56d9a32e3886fd517a85ede50d.png)
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2024-01-30更新
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3卷引用:安徽合肥庐阳区2023-2024学年九年级上学期期末数学试题