Rt
的两条直角边分别是一元二次方程
的两根,则
的外接圆半径为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dac77366c746161a381e0589d63e451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
20-21九年级上·四川自贡·阶段练习 查看更多[3]
四川省自贡市荣县中学校2020-2021学年九年级上学期12月月考数学试题(已下线)2023年云南省昆明市晋宁区中考一模数学试题(已下线)24.2 点和圆、直线和圆的位置关系(习题)-2022-2023学年九年级数学上册同步精讲精练(人教版)
更新时间:2022-01-08 20:41:26
|
相似题推荐
填空题
|
适中
(0.65)
【推荐1】定义新运算“※”如下:当
时,
;当
时,
.
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff405befc1c32f54a260b85f108baf1.png)
_____ ;若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
___ ;
(2)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1132de2e8913dba9c5cc2396ecb09fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc94a6fb2a9599425787ee99da73da84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e18138009d81cacf684ccaab6c161c33.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff405befc1c32f54a260b85f108baf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b64ce8f087b3a847b3948d50b1a0d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23fb404e5563ab10d42a2d0b587a5336.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐2】已知3,a,4,b,5这五个数据,其中a,b是方程x2﹣3x+2=0的两个根,则这五个数据的方差是_________ .
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐1】如图,
的半径为13,
,分别以点A,B为圆心,大于
的长为半径作弧,两弧相交于点M,N,作直线
交
于点C,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1bc69e886c7afedf1c9233e9a2a6870.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d49404351575703cfe8325d1352ec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1bc69e886c7afedf1c9233e9a2a6870.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/5a56ac9f-54e4-4e58-a1d2-504ebde1c46d.png?resizew=119)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐2】如图所示,校园有一块四边形草坪
,测得
,
m,
m,
m,
m,则这块四边形草坪的面积是______ m2.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9142db4dd2ef151bf3d4a63afb61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a1f73190215b1c9d45a3dd9e6b66ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae8221601c7bd5c51fd520615581fa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bafd21730b3a22d6b078eeb1a18bc468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b03bb56c7e76954b192bd8595a0865a.png)
![](https://img.xkw.com/dksih/QBM/2021/11/11/2849168005070848/2863791252529152/STEM/966df6fc-4554-414f-b5eb-8ef42363f7a1.png)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐1】已知
中,
cm,
cm,
cm,那么
的外接圆半径为_____ cm.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐2】两直角边长分别为6cm、8cm的直角三角形外接圆半径是___ cm.
您最近一年使用:0次