在△ABC中,AM是BC边的中线,AD是BC边上的高,且AD=3,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b511418feebc02e7ba329ce98c81616a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b511418feebc02e7ba329ce98c81616a.png)
更新时间:2022-07-17 18:48:58
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