已知
的三内角
,
,
满足
,则
的面积与
外接圆的面积之比为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a57ad4841e0eff88587b3a883a7d1a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
更新时间:2024-05-27 00:25:03
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较易
(0.85)
名校
解题方法
【推荐1】已知
的内角A,B,C对应的边长分别为a,b,c,
,
,则
外接圆半径为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cade5f40f5b6f30f2adcb659bc7a994d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
填空题-单空题
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较易
(0.85)
【推荐2】如图,点
,
,
是圆
上的点,且
,
,则劣弧
的长为______ .
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c1671bb42b77ca467df0002940f5a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://img.xkw.com/dksih/QBM/2020/2/12/2396995448823808/2398688650518528/STEM/a456ba9195344a72bd0eb93cd87a1945.png?resizew=143)
您最近一年使用:0次
填空题-单空题
|
较易
(0.85)
【推荐1】
的内角A、B、C的对边分别为a、b、c,已知
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18a73cecdaa63331f852e15a8bf660bc.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/882589c896c6993d9687f0e14a283481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db04fff45a700a5f66db80e7658ab4fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/153c648e4cdfa83ffcbaa456483d98c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db3ca965fa10cbca928a12fabb00f45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18a73cecdaa63331f852e15a8bf660bc.png)
您最近一年使用:0次