真题
1 . 如图,已知
,
是
的两条弦,
,
,
,则
的半径等于________ .
![](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/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bb2d945b7908ebac080e6595d4895f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c1ac2e11788860424508ea9e80cf89d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/5/f3222943-ee99-495b-923d-342417956549.png?resizew=143)
您最近一年使用:0次
真题
2 . 如图所示,过
外一点
作一条直线与
交于
,
两点,已知
,点
到
的切线长
,则弦
的长为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.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/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5fca8c94add435f4aefb933ffe55a01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
真题
3 . 如图,在圆
中,相交于点
的两弦
,
的中点分别是
,
,直线
与直线
相交于点
,证明:
![](https://img.xkw.com/dksih/QBM/2015/6/24/1572139784364032/1572139790237696/STEM/ee1f7ff8-b018-4fec-97a2-85a9b1d298ed.png?resizew=207)
(1)
;
(2)
![](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/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/a4cfef623a9534b5708df5f95f1760a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/2015/6/24/1572139784364032/1572139790237696/STEM/ee1f7ff8-b018-4fec-97a2-85a9b1d298ed.png?resizew=207)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25ce61dccb5935c5b29c1cde9b9600b2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52cdeb874bea08c9eb000a1ab713d0db.png)
您最近一年使用:0次
4 . 如图,
是半圆周上的两个三等分点,直径
,
,垂足为D,
与
相交与点F,则
的长为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354e1b631c1f46ed3aa1ce42fe498896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.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/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://img.xkw.com/dksih/QBM/2014/5/22/1571734572580864/1571734578241536/STEM/28cbdd348dd248fca62da6e447e4d7c7.png?resizew=202)
您最近一年使用:0次
5 . 如图,在半径为
的
中,弦AB,CD 相交于点P,PA=PB=2,PD=1,圆心O 到弦CD 的距离为__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619096595112f0340a43b756e114dd3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://img.xkw.com/dksih/QBM/2013/7/17/1571288238325760/1571288243822592/STEM/97b138d5-308b-4d9f-8f9f-c68fdfbf6643.png?resizew=150)
您最近一年使用:0次
2016-12-02更新
|
1844次组卷
|
6卷引用:2013年全国普通高等学校招生统一考试理科数学(湖南卷)
2013年全国普通高等学校招生统一考试理科数学(湖南卷)(已下线)2013-2014学年湖北省云梦一中高二5月月考理科数学试卷(已下线)2014新人教A版选修4-1 2.2圆内接四边形性质与判定定理2015-2016学年河北省定州中学高一6月月考数学试卷福建省2016届高三毕业班总复习(几何选讲)单元过关平行性测试卷(文理科)数学试题【校级联考】重庆市綦江区实验中学高2019级高二下第三学月考试理科数学试题
真题
6 . 如图,过点P的直线与圆O相交于A,B两点.若PA=1,AB=2,PO=3,则圆O的半径等于_______ .
![](https://img.xkw.com/dksih/QBM/2012/6/14/1570886583476224/1570886588620800/STEM/4410141e-46ae-4f4b-92b1-c9b602193b31.png?resizew=162)
您最近一年使用:0次