已知
的内角
,
,
的对边分别为
,
,
,若
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e5c073055add093d668253b868c414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-02-28 15:54:26
|
【知识点】 正弦定理边角互化的应用解读
相似题推荐
单选题
|
适中
(0.65)
解题方法
【推荐1】在
中,内角A,B,C所对的边分别为a,b,c,若三边的长为连续正整数,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b70fc638cfb52f258d65f2f1ba4d526.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5740659bdb0eead4ca92a7432384a471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e16fadd10ad6c9f8b359bddbd6cfb8b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b70fc638cfb52f258d65f2f1ba4d526.png)
A.2:3:4 | B.7:6:5 | C.3:4:5 | D.4:5:6 |
您最近一年使用:0次
单选题
|
适中
(0.65)
解题方法
【推荐2】在
中,若
,且B为锐角,则该三角形的形状是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2a6dc8692deb7154f18665a98ced70.png)
A.等腰三角形 | B.直角三角形 | C.钝角三角形 | D.等腰直角三角形 |
您最近一年使用:0次