如图,在平面直角坐标系中,直线
与
轴、
轴分别交于点
、
,半径为
的
的圆心
从点
(点
在直线
上)出发以每秒
个单位长度的速度沿射线
运动,设点
运动的时间为
秒,则当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
______ 时,
与坐标轴相切.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/026808536f6b6d265c778e23836fbf13.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1d9218917d85a1dc19e60f076b8bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1acb9873fb08db6004746568b62c4fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/026808536f6b6d265c778e23836fbf13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1d9218917d85a1dc19e60f076b8bfa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/22/b1022dc5-c94f-4597-b551-f2f14b07c041.png?resizew=161)
19-20九年级上·江西赣州·期末 查看更多[12]
江西省赣州市兴国县2019-2020学年九年级上学期期末数学试题(已下线)【南昌新东方】2020年10月雷式三中初三月考 48云南省大理白族自治州祥云县2021-2022学年九年级上学期期末数学试题(已下线)2.5 直线与圆的位置关系(分层练习)-2022-2023学年九年级数学上册同步精品课堂(苏科版)山东省日照市东港区新营中学2022-2023学年九年级上学期期中数学试题(已下线)第二十四章 圆(单元测试)-2022-2023学年九年级数学上册同步精品课堂(人教版)(已下线)24.2.2 直线和圆的位置关系(分层练习)-2022-2023学年九年级数学上册同步精品课堂(人教版)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2023年广东省广州市白云区华赋学校中考二模数学试题江西省南昌市松柏学校2021-2022学年九年级上学期月考数学试题(已下线)第05讲 直线与圆的位置关系-【帮课堂】2023-2024学年九年级数学上册同步学与练(人教版)云南省昆明市官渡区官渡区云大附中星耀学校2023-2024学年九年级上学期12月月考数学试题
更新时间:2022-07-19 20:51:27
|
相似题推荐
填空题
|
较难
(0.4)
名校
【推荐1】如图,
中,
,D是
上一点,
,以
为边作等腰直角
,当E恰好落在边
上时,连接
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/439d51906c864db626168a3274370a7f.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c284ccb6f4ee7a8690013d2ce16e226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f01c4faacedfe56f5127d6c0cc63cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/439d51906c864db626168a3274370a7f.png)
您最近一年使用:0次
填空题
|
较难
(0.4)
【推荐2】如图,
,过点
的直线分别交
于点
. 下列结论:
①若
为
的中点,则
;
②若
于点
,则
为
的中点;
③若
为
的中点,则
;
④
.
其中正确的结论有__________ . (填写序号即可)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4d18faddd1f2154e21913ed9593cf48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/692c58a2af64d705cd4a988ed2bfbc3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/28/233668f7-95b7-4d11-827d-e3c0b4144f0d.png?resizew=150)
①若
![](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/8146b3d86f47ee76e71828821d6888b7.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8146b3d86f47ee76e71828821d6888b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
③若
![](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/bffe699ba7bff68a3556f8624a4e4f24.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6965275a29d05dc272f31766a70fd25f.png)
其中正确的结论有
您最近一年使用:0次
填空题
|
较难
(0.4)
名校
【推荐1】如图1,在矩形
中,
,
,
分别是
边和
的中点,若线段
绕点
逆时针旋转得到线段
,连接
,如图2所示.
绕点
逆时针旋转
时,线段
的长为__________ cm;
(2)如图3,连接
,则
长度的最小值是__________ cm.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4491b2e97862aafb789570cdf749e33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67aab99d8726144e536446996e5daad0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f44755c5fee4b90266eac73ad47a128.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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef83a7b6c9604931ce6007cfafe8d3d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d486055c508b9ff7f79fb8d2a464458b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d486055c508b9ff7f79fb8d2a464458b.png)
(2)如图3,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b865d36e3fdd5e443817456469ecda73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b865d36e3fdd5e443817456469ecda73.png)
您最近一年使用:0次
填空题
|
较难
(0.4)
【推荐2】如图,以等腰
的底边
为直径作
,分别交
,
边于点
,
,过点
作
于点
,
的平分线交
于点
.若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96cf3f9a01a810792ebacc7f5bc70e97.png)
________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32217457c4e96e2ef155cf15c1b65d97.png)
________ .(参考素材:角平分线性质定理:三角形一个角的平分线与其对边所成的两条线段与这个角的两边对应成比例,如
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc90fee532e50d319081d571410421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adcae9d00980803e5955228d1e217abe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f01c4faacedfe56f5127d6c0cc63cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21093eae7765f54a8de66750a63e1a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96cf3f9a01a810792ebacc7f5bc70e97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32217457c4e96e2ef155cf15c1b65d97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e41f9441a16149aff0db1d52cd25174.png)
您最近一年使用:0次
填空题
|
较难
(0.4)
【推荐1】在
中
,且
,点E是
上一动点,连接
,过点E作
的垂线,交边
于点F,则
的最大值为_______ .
![](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/8143d7ce019b59a2420d4b1aa0a584ae.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/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/10/04a8e247-9fd8-4299-9e27-0dff26374f50.png?resizew=174)
您最近一年使用:0次
填空题
|
较难
(0.4)
解题方法
【推荐2】在平面直角坐标系中,已知直线
分别为x轴,y轴相交于A,B两点,点P(0,m)是y轴上一个动点,若以点P为圆心的圆P与x轴和直线l都相切,则m的值是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7f7b1d0fa2329a31154ea9152ecc983.png)
您最近一年使用:0次