如图,在
中,
,点D在边
上,
,
,点D到
的距离为3,下列说法中:①
是
的平分线;②
是等腰三角形;③点D在
的中垂线上;④
:
:3,其中说法正确的是 ______
把所有正确结论的序号都写在横线上)
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更新时间:2020-03-17 20:06:50
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