已知:如图,在四边形ABCD中,M是AD中点,BA,CM的延长线相交于点E,AE=AB,AB//CD.求证已知:如图,在四边形ABCD中,M是AD中点,BA,CM的延长线相交于点E,AE=AB,AB//CD.求证:(1)四边形ABCD是平行四边形;
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![已知:如图,在四边形ABCD中,M是AD中点,BA,CM的延长线相交于点E,AE=AB,AB//CD.求证已知:如图,在四边形ABCD中,M是AD中点,BA,CM的延长线相交于点E,AE=AB,AB//CD.求证:(1)四边形ABCD是平行四边形;](/uploads/image/z/7231345-25-5.jpg?t=%E5%B7%B2%E7%9F%A5%3A%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E4%B8%AD%2CM%E6%98%AFAD%E4%B8%AD%E7%82%B9%2CBA%2CCM%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E7%9B%B8%E4%BA%A4%E4%BA%8E%E7%82%B9E%2CAE%3DAB%2CAB%2F%2FCD.%E6%B1%82%E8%AF%81%E5%B7%B2%E7%9F%A5%3A%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E4%B8%AD%2CM%E6%98%AFAD%E4%B8%AD%E7%82%B9%2CBA%2CCM%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E7%9B%B8%E4%BA%A4%E4%BA%8E%E7%82%B9E%2CAE%3DAB%2CAB%2F%2FCD.%E6%B1%82%E8%AF%81%EF%BC%9A%EF%BC%881%EF%BC%89%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E6%98%AF%E5%B9%B3%E8%A1%8C%E5%9B%9B%E8%BE%B9%E5%BD%A2%EF%BC%9B)
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