如图,在△ABC中,
,
,
,D为
中点,E为直线
上任意一点,将
沿
翻折,点A 落在点F 上,线段
、线段
交于点M,则当
为直角三角形时,
的长为 ___________ .
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2023·辽宁沈阳·模拟预测 查看更多[3]
更新时间:2024-05-15 21:13:14
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