如图,在6x6的正方形网格中,△ABC的顶点都在小正方形的顶点上,则cos∠BAC的值是_____ .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/20/e1d915c1-9967-42ed-9d7a-e8a25cb07e6e.jpg?resizew=107)
2020·广东韶关·模拟预测 查看更多[2]
更新时间:2020-07-06 16:59:21
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【推荐2】如图,四边形
中,
,
,点
是
边上一点,
,连接
、
交于点
,若
,则线段
的长为______ .
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