如图所示,在直角梯形ABCD中,角ABC=90度,AD平行于BC,AB=BC,E是AB的中点,CE垂直于BD.1)求证:BE=BD;2)求证:AC是线段ED的垂直平分线;3)三角形DBC是等腰三角形吗?并说明理由
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![如图所示,在直角梯形ABCD中,角ABC=90度,AD平行于BC,AB=BC,E是AB的中点,CE垂直于BD.1)求证:BE=BD;2)求证:AC是线段ED的垂直平分线;3)三角形DBC是等腰三角形吗?并说明理由](/uploads/image/z/2615815-55-5.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E5%9C%A8%E7%9B%B4%E8%A7%92%E6%A2%AF%E5%BD%A2ABCD%E4%B8%AD%2C%E8%A7%92ABC%EF%BC%9D90%E5%BA%A6%2CAD%E5%B9%B3%E8%A1%8C%E4%BA%8EBC%2CAB%EF%BC%9DBC%2CE%E6%98%AFAB%E7%9A%84%E4%B8%AD%E7%82%B9%2CCE%E5%9E%82%E7%9B%B4%E4%BA%8EBD.1%EF%BC%89%E6%B1%82%E8%AF%81%EF%BC%9ABE%3DBD%EF%BC%9B2%EF%BC%89%E6%B1%82%E8%AF%81%EF%BC%9AAC%E6%98%AF%E7%BA%BF%E6%AE%B5ED%E7%9A%84%E5%9E%82%E7%9B%B4%E5%B9%B3%E5%88%86%E7%BA%BF%EF%BC%9B3%EF%BC%89%E4%B8%89%E8%A7%92%E5%BD%A2DBC%E6%98%AF%E7%AD%89%E8%85%B0%E4%B8%89%E8%A7%92%E5%BD%A2%E5%90%97%3F%E5%B9%B6%E8%AF%B4%E6%98%8E%E7%90%86%E7%94%B1)
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