1 . 如图,∠MON=30°,p是∠MON的角平分线,PQ平行ON交OM于点Q,以P为圆心半径为4的圆ON相切,如果以Q为圆心半径为r的圆与
相交,那么r的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fadd3422a9741edfc73bb2861b8d3b0d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/3/e006b399-dd53-417a-bfac-badb660e0f1d.png?resizew=242)
A.4<r<12 | B.2<r<12 | C.4<r<8 | D.r>4 |
您最近一年使用:0次
2020-05-10更新
|
661次组卷
|
5卷引用:上海金山区2019-2020学年九年级下学期质量监测数学试题
上海金山区2019-2020学年九年级下学期质量监测数学试题2020年上海市金山区中考数学二模试题(已下线)考点05 四边形-2021年《三步冲刺中考·数学》(上海专用)之第1步小题夯基础(已下线)热点11 圆-2021年中考数学【热点·重点·难点】专练(上海专用)(已下线)专题09 圆与切线相关五类题型-【好题汇编】备战2023-2024学年九年级数学上学期期末真题分类汇编(浙教版)
2 . 在直角梯形
中,
,如果
,
,
,那么对角线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c978d92edf0c4c1ef8620c17df75d35e.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0facf189b2a3153beb7b9e077d3b1146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae8221601c7bd5c51fd520615581fa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ec435aa1401dbce7863b531bf2f3e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c978d92edf0c4c1ef8620c17df75d35e.png)
您最近一年使用:0次
2020九年级·上海·专题练习
解题方法
3 . 已知
为线段
上的动点,点
在射线
上,且满足
(如图所示).连接
,当
,且点
在线段
上时,设点
之间的距离为
,
,其中
表示
的面积,
表示
的面积,求
关于
的函数解析式,并写出函数定义域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ada767b65dea077306bdf64722345d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3dde6bc5678e260ed7d43bad05d3c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/379b96bd6556f8b3f1f6f331d24e8283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831bd07f31fe83d55ec74359b56637e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc569f970bbb9512d88d7f168d94f0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb918dac79018bfef1afdbb17ad218df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0cbf0604c1a9bdb08cc54fa6821fa06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/2/91c145d7-8420-40c6-88b2-df236cad7a9f.png?resizew=220)
您最近一年使用:0次
名校
4 . 已知矩形
中点
是边
上一点,联结
,过点
作
于
,过点
作
交
,
于点
,
,已知
,求证:
为正方形(需要写本学期学习的理由)
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/187ed13a7bd532bd39af5e5ad7493a2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6992555878dbb49a22e02435d3072b74.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e444739e269a94733b2b0598b559313.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b80a0e428cb894bfd09a6129a73ea4ac.png)
![](https://img.xkw.com/dksih/QBM/2020/4/24/2448427272626176/2449003572805632/STEM/d9dc7db48d084a96a0c883f638eca2aa.png?resizew=176)
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名校
5 . 等腰梯形
一个内角为
,下底长为
,梯形面积为
,则梯形
的周长为_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
名校
6 . 在矩形
中,点E在
上,
平分
,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3de20ba8bda63c650ef571be155702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd6667173aa47d505361eb67d5c4000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
您最近一年使用:0次
7 . 如图,在矩形ABCD中,AB=4,AD=5,连接AC,O是AC的中点,M是AD上一点,且MD=1,P是BC上一动点,则PM﹣PO的最大值为_____ .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/13/1c441408-f98a-4dc4-848a-3d58ee28b05c.png?resizew=151)
您最近一年使用:0次
2020-04-02更新
|
811次组卷
|
8卷引用:天津市河北区2019-2020学年九年级下学期线上测试数学试题
天津市河北区2019-2020学年九年级下学期线上测试数学试题2020年天津市河北区中考一模数学试题2020年天津河北区初三毕业班“停课不停学”数学考试试题2020年江苏省沭阳县如东实验中学九年级下学期模拟数学试题(已下线)专题8.3 几何中的最值问题-备战2021年中考数学精选考点专项突破题集(上海专用)(已下线)【新东方】 【2021.5.18】【YW】【初二下】【数学】【YW0015】四川省达州市渠县东安雄才学校2022-2023年九年级上学期期中考试数学试题(已下线)专题18 矩形中的最值-【微专题】2022-2023学年八年级数学下册常考点微专题提分精练(浙教版)
名校
8 . 矩形
中,
,
平分
,
于点
,
交
于点
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8998c9c5269097c4686f174fb112f150.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1d36437d9e50f560536853ecd636d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aec81ef52614187fae370b1fd5463d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8998c9c5269097c4686f174fb112f150.png)
![](https://img.xkw.com/dksih/QBM/2020/3/21/2429848775344128/2431634405736448/STEM/704f060795434a16b332428f322bfd42.png?resizew=163)
您最近一年使用:0次
2020九年级·上海·专题练习
9 . 如图,在直角梯形ABCD中,AD∥BC,AD⊥CD,M为腰AB上一动点,联结MC、MD,AD=10,BC=15,cotB
.
![](https://img.xkw.com/dksih/QBM/2020/1/27/2386175209725952/2386679863279616/STEM/c9f41e9561894f2290fdba513fce3edf.png?resizew=165)
(1)求线段CD的长.
(2)设线段BM的长为x,△CDM的面积为y,求y关于x的函数解析式,并写出它的定义域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc4edc2729cf1acc59bd38964d9dd31.png)
![](https://img.xkw.com/dksih/QBM/2020/1/27/2386175209725952/2386679863279616/STEM/c9f41e9561894f2290fdba513fce3edf.png?resizew=165)
(1)求线段CD的长.
(2)设线段BM的长为x,△CDM的面积为y,求y关于x的函数解析式,并写出它的定义域.
您最近一年使用:0次
10 . 如图,在平面直角坐标系中,抛物线
与
轴交于
、
两点(点
在点
左侧),经过点
的直线
:
与
轴交于点
,与抛物线的另一个交点为
,且
.
![](https://img.xkw.com/dksih/QBM/2019/4/11/2180042333814784/2180927426215936/STEM/6a629d16a01741c085376ed74a60fb12.png?resizew=374)
(1)直接写出点
的坐标,并用含
的式子表示直线
的函数表达式(其中
、
用含
的式子表示).
(2)点
为直线
下方抛物线上一点,当
的面积的最大值为
时,求抛物线的函数表达式;
(3)设点
是抛物线对称轴上的一点,点
在抛物线上,以点
、
、
、
为顶点的四边形能否为矩形?若能,求出点
的坐标;若不能,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e1ae91ffe7e82aac751d811992fd0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/d6018f954ea97153f41d9a7d2d954d2b.png)
![](https://img.xkw.com/dksih/QBM/2019/4/11/2180042333814784/2180927426215936/STEM/6a629d16a01741c085376ed74a60fb12.png?resizew=374)
(1)直接写出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c6c4a684e08d7a47b544929c449c054.png)
(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2019-04-12更新
|
503次组卷
|
2卷引用:上海市宝山区2019-2020学年九年级下学期期中数学试题