1 . 如图,在边长为2的等边
中,以点O为圆心画弧,与
边相切于点C,交
于点D,交
于点E,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0c44512cb86bcf48c6d21357f45b533.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/88203cdf-979f-45f0-815c-4702b8705141.png?resizew=150)
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2022-11-04更新
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3卷引用:浙教版九年级下册第二章直线与圆的位置关系单元测试数学试题
2 . 物线与
轴交于
两点,其中点
的坐标为
,与
轴交于点
,点
为抛物线的顶点,且点
的横坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/de7ced19-1905-4b08-9116-4a45e8136964.png?resizew=186)
(1)求此抛物线的函数表达式;
(2)求
的面积;
(3)若点
是
轴下方拋物线上任意一点,已知
的半径为2,当
与坐标轴相切时,圆心
的坐标是_____________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcbcd0aebdd8bd688d108834747009f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae140e4db2c5563e5f902fcbebaac262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/de7ced19-1905-4b08-9116-4a45e8136964.png?resizew=186)
(1)求此抛物线的函数表达式;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1d9218917d85a1dc19e60f076b8bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1d9218917d85a1dc19e60f076b8bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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(已下线)第5章 二次函数(B卷·能力提升练)-【单元测试】2022-2023学年九年级数学下册分层训练AB卷(苏科版)江苏省徐州市沛县2022-2023学年九年级上学期期中数学试题江苏省徐州市市区2022-2023学年九年级上学期期中数学试题(已下线)2023江苏省苏州市中考数学变式题22-27题
3 . 如图,等边三角形
的边长为4,
的半径为
,
为
边上一动点,过点
作
的切线
,切点为
,则
的最小值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/30/422f6ea9-6537-4a53-a896-1805bcb4477e.png?resizew=135)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923c80b5fd640edf1f80ea280be8ab1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef812f839622326a7d7027cc806aaeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923c80b5fd640edf1f80ea280be8ab1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eacd9c1ce5e65fec29c32f40d86b73d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/30/422f6ea9-6537-4a53-a896-1805bcb4477e.png?resizew=135)
A.![]() | B.![]() | C.3 | D.![]() |
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4 . 在平面直角坐标系中,已知点A的坐标为
,若
与坐标轴有三个公共点,则
的半径为 _____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad20e2bc6576fc461419f8f138d26e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c20d0b44025a639ce3a92d639dae587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c20d0b44025a639ce3a92d639dae587.png)
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|
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5卷引用:第三章 圆(B卷·能力提升练)-【单元测试】2022-2023学年九年级数学下册分层训练AB卷(北师大版)
(已下线)第三章 圆(B卷·能力提升练)-【单元测试】2022-2023学年九年级数学下册分层训练AB卷(北师大版)江苏省无锡市江阴市华士实验中学2022-2023学年九年级上学期10月月考数学试题云南省曲靖市会泽县以礼中学校2022-2023学年九年级上学期11月月考数学试题江苏省宿迁市宿城区2022-2023学年九年级上学期期中数学试题(已下线)专题04 点和圆、直线和圆的位置关系(经典基础题8种题型+优选提升题)-【好题汇编】备战2023-2024学年九年级数学上学期期中真题分类汇编(苏科版)
5 . 如图,在
中,∠C=90°,AC=3,BC=4,半径为2的⊙O与AC,BC分别相切于点D,E,将线段AB沿着射线CA的方向平移得到线段
,若
与⊙O相切于点F,连接EF,则EF的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7281b641656a5992abaafb4190ca9afc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
![](https://img.xkw.com/dksih/QBM/2022/10/12/3085992348991488/3090277407252480/STEM/b55d2da8700b4bffbd4814f8a72a10ca.png?resizew=179)
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6 . 在△ABC中,∠ACB=90°,CA=CB=4,点D在BC上,且BD=2,以B为圆心,将BD顺时针旋转270°,形成优弧DF,P为优弧DF上一点,线段CP绕着点C顺时针旋转90°,得到线段CE,连接PB,AE.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/86dc4da6-83d4-4abc-a1a4-e662e1dcc6de.png?resizew=196)
(1)求证:AE=BP;
(2)若CP与优弧相切,则符合条件的P点有_________个,CP=_________;
(3)当
时,求∠CBP的度数.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/86dc4da6-83d4-4abc-a1a4-e662e1dcc6de.png?resizew=196)
(1)求证:AE=BP;
(2)若CP与优弧相切,则符合条件的P点有_________个,CP=_________;
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/372727cd89ee7d67787d14aa70b1b9a9.png)
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真题
7 . 如图,
是
的外接圆,
与
相切于点D,
分别交
,
的延长线于点E和F,连接
交
于点N,
的平分线
交
于点M.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/2/9666b482-4f73-4918-ba8c-d82e0c197fec.png?resizew=230)
(1)求证:
平分
;
(2)若
,
,求线段
的长.
![](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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/476b0b8378f4b0f73f3dc5d84d89f616.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/2/9666b482-4f73-4918-ba8c-d82e0c197fec.png?resizew=230)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe9e810c9dcace5a59f63aea023457c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da617789f19cad2b506d0b6eb7e6fb7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
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2022-10-01更新
|
1825次组卷
|
7卷引用:浙教版九年级下册第二章直线与圆的位置关系单元测试数学试题
浙教版九年级下册第二章直线与圆的位置关系单元测试数学试题2022年内蒙古呼伦贝尔市、兴安盟中考数学真题(已下线)专题3.55 圆中的相似问题(巩固篇)(专项练习)-2022-2023学年九年级数学下册基础知识专项讲练(北师大版)2023年浙江省杭州市中考模拟训练卷(已下线)黄金卷1-【赢在中考·黄金8卷】备战2023年中考数学全真模拟卷(沈阳专用)(已下线)专题09 圆的相关计算问题-学易金卷:2023年中考数学一模试题分项汇编(浙江专用)(已下线)湖北省襄阳五中华侨城实验学校2023-2024学年九年级上学期数学周测(16)
22-23九年级·全国·单元测试
名校
8 . 如图,一个较大的圆内有15个半径为1的小圆,所有的交点都为切点,图中阴影为大圆内但在所有小圆外部分,则阴影部分的面积为________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/1/c73527db-74f1-4409-aca8-a36ecde770b2.png?resizew=159)
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(已下线)第二十四章 圆(B卷·学霸加练卷,难度★★★★★)-【单元测试】2022-2023学年九年级数学分层训练AB卷(人教版)2023年河南省河南师范大学附属中学九年级3月份中招模拟数学试题河南省开封市龙亭区河南大学附属中学2022-2023学年九年级下学期3月月考数学试题2022年上海市上海中学自主招生数学试题
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9 . 如图,正方形
的边长为
,点
在
上,以
为圆心的扇形与边
相切于点
,与两边交于点
,
,则弧
长度的最小值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/30/fc5362e6-4bcd-4957-977d-5e0f3a9f7bad.png?resizew=138)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/30/fc5362e6-4bcd-4957-977d-5e0f3a9f7bad.png?resizew=138)
A.![]() | B.![]() | C.![]() | D.![]() |
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(已下线)第二十四章 圆(B卷·学霸加练卷,难度★★★★★)-【单元测试】2022-2023学年九年级数学分层训练AB卷(人教版)(已下线)第26课 圆章末复习-【帮课堂】2022-2023学年九年级数学上册同步精品讲义(人教版)(已下线)第14讲 正弦、余弦-【帮课堂】2022-2023学年九年级数学下册同步精品讲义(苏科版)湖北省恩施市2022-2023学年九年级上学期数学期末考试题卷湖北省恩施土家族苗族自治州2022-2023学年九年级上学期期末数学试题
22-23九年级·全国·单元测试
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10 . 如图,矩形
中,
,
,以
为直径的半圆
与
相切于点
,连接
,则阴影部分的面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/1/93402cdc-4c5c-4344-80c9-ab45758616e6.png?resizew=178)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/1/93402cdc-4c5c-4344-80c9-ab45758616e6.png?resizew=178)
A.![]() | B.![]() | C.![]() | D.![]() |
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(已下线)第二十四章 圆(B卷·学霸加练卷,难度★★★★★)-【单元测试】2022-2023学年九年级数学分层训练AB卷(人教版)(已下线)考点三正多边形和圆的有关计算(已下线)第25课 弧长和扇形面积、圆锥的侧面展开图-【帮课堂】2022-2023学年九年级数学上册同步精品讲义(人教版)2023年山东省泰安市岱岳区中考一模数学试题 2023年四川省南充市顺庆区南充高级中学考前模拟数学试题(已下线)2023年江苏省连云港市中考数学真题变式题5-8题2023年四川省南充市名校联考模拟预测数学模拟预测题