三角形ABC中,AD垂直于BC,垂足为点D(D在BC边上),BE垂直于AC,垂足为点E,M为AB边的中点,联结ME、MD、ED.(1)当点E在CA的延长线上,请画出相应的图形,并说明角EMD等于两倍角DAC是否还成立,若成立,请证
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![三角形ABC中,AD垂直于BC,垂足为点D(D在BC边上),BE垂直于AC,垂足为点E,M为AB边的中点,联结ME、MD、ED.(1)当点E在CA的延长线上,请画出相应的图形,并说明角EMD等于两倍角DAC是否还成立,若成立,请证](/uploads/image/z/12702267-27-7.jpg?t=%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2CAD%E5%9E%82%E7%9B%B4%E4%BA%8EBC%2C%E5%9E%82%E8%B6%B3%E4%B8%BA%E7%82%B9D%28D%E5%9C%A8BC%E8%BE%B9%E4%B8%8A%29%2CBE%E5%9E%82%E7%9B%B4%E4%BA%8EAC%2C%E5%9E%82%E8%B6%B3%E4%B8%BA%E7%82%B9E%2CM%E4%B8%BAAB%E8%BE%B9%E7%9A%84%E4%B8%AD%E7%82%B9%2C%E8%81%94%E7%BB%93ME%E3%80%81MD%E3%80%81ED.%EF%BC%881%EF%BC%89%E5%BD%93%E7%82%B9E%E5%9C%A8CA%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%B8%8A%2C%E8%AF%B7%E7%94%BB%E5%87%BA%E7%9B%B8%E5%BA%94%E7%9A%84%E5%9B%BE%E5%BD%A2%2C%E5%B9%B6%E8%AF%B4%E6%98%8E%E8%A7%92EMD%E7%AD%89%E4%BA%8E%E4%B8%A4%E5%80%8D%E8%A7%92DAC%E6%98%AF%E5%90%A6%E8%BF%98%E6%88%90%E7%AB%8B%2C%E8%8B%A5%E6%88%90%E7%AB%8B%2C%E8%AF%B7%E8%AF%81)
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