如图所示,在平面四边形ABCD中,若
,
,
,
,则
的面积的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88c44f558705de3bcefcfc0ece96b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1c5491be007f01199495e64c6146d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b850b6c714abe0d117eae47783230b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973577669443584/2975031634386944/STEM/cfe66c07-119c-4135-910f-ead992da69aa.png?resizew=197)
更新时间:2022-05-08 16:20:15
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【推荐2】已知
中,内角
、
、
所对边分别为
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的面积为________ .
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【推荐1】已知
中,角
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【推荐2】在
中,角
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______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3ef4881bd7c5860178dbdbc7bba6e3.png)
_______ .
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