在锐角
中,
所对的边分别为a,b,c,有以下结论:
(其中R为
的外接圆半径)成立.在
中,若
,则
的外接圆面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c1e84aaa7e1b5c1283075b36c72fb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c30b12f8bf54428846cf378ffd5a23b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a1bfb131b00623793bf2d7b7377449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() | C.![]() | D.![]() |
21-22九年级上·广西百色·期末 查看更多[2]
广西壮族自治区百色市靖西市2021-2022学年九年级上学期期末数学试题(已下线)专题3.5 确定圆的条件(能力提升)-2022-2023学年九年级数学下册《同步考点解读·专题训练》(北师大版)
更新时间:2022-07-22 09:39:50
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【推荐1】三角形两边的长分别是 8 和 6,第三边的长是方程 x2﹣12x+20=0 的一个实数根,则三角形的外接圆半径是( )
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【推荐1】在
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【推荐2】如图,在
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