已知空间直角坐标系中三点
,
,
,则三角形ABC的面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65e67f373e6b207158aad902829e2b01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/189deb958a5b960009a6a2a168f4be8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68ef2863f5f88f25811cb74f9f022101.png)
更新时间:2021-12-02 21:28:41
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