锐角
中,内角
的对边分别为
,若
,则
的面积的取值范围是________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ab947600848e99ba084784e6fedbeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
2021·湖南长沙·模拟预测 查看更多[9]
湖南省长沙市长郡中学2021届高三下学期考前冲刺卷数学试题河南省驻马店市新蔡县第一高级中学2020-2021学年高一下学期6月月考数学试题(已下线)2021年高考全国乙卷数学(理)高考真题变式题11-15题陕西省西安中学2022届高三下学期八模理科数学试题江苏省泰州中学2021-2022学年高一下学期第二次月度检测数学试题安徽省合肥市第六中学2021-2022学年高一下学期期末数学试题(已下线)2021年高考全国乙卷数学(理)高考真题变式题11-15题福建省永安市第三中学2022-2023学年高一下学期第一次月考(3月)数学试题(已下线)期末考试仿真模拟试卷04-(苏教版2019必修第二册)
更新时间:2021-06-08 12:56:10
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【推荐1】已知
的内角
所对的边分别为
,
,
,角
为锐角,
的面积为
,若
是
边上的中线,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
_________ .
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
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【推荐2】在
中,角
所对的边分别为
,
是
上的高.若
,
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_________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5a94417d0d62715ea4067280d733df.png)
_________ .
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【推荐1】如图所示,在四边形
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,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
___________ .
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【推荐2】记
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