在
中,
,
,
是
的中点,
,若
,则
的面积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f7df2ff6a24b15f485bec38e3fce6fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8180b3d72e523c037262b8a4579f688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1360616188d1cdc257ff7d50886b329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd991f4c5443cee5f9609c8ee90e859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
更新时间:2020-03-19 09:52:31
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