如图,在△ABC中,AD是BC边上的中线,点E是AD的中点,过A点作BC的平行线交BE的延长线于点F,连结CF(1)CD与AF相等吗?为什么?(2)当△ABC满足什么条件时,四边形AFCD是矩形,请说明理由
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![如图,在△ABC中,AD是BC边上的中线,点E是AD的中点,过A点作BC的平行线交BE的延长线于点F,连结CF(1)CD与AF相等吗?为什么?(2)当△ABC满足什么条件时,四边形AFCD是矩形,请说明理由](/uploads/image/z/4039579-19-9.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E2%96%B3ABC%E4%B8%AD%2CAD%E6%98%AFBC%E8%BE%B9%E4%B8%8A%E7%9A%84%E4%B8%AD%E7%BA%BF%2C%E7%82%B9E%E6%98%AFAD%E7%9A%84%E4%B8%AD%E7%82%B9%2C%E8%BF%87A%E7%82%B9%E4%BD%9CBC%E7%9A%84%E5%B9%B3%E8%A1%8C%E7%BA%BF%E4%BA%A4BE%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%BA%8E%E7%82%B9F%2C%E8%BF%9E%E7%BB%93CF%EF%BC%881%EF%BC%89CD%E4%B8%8EAF%E7%9B%B8%E7%AD%89%E5%90%97%EF%BC%9F%E4%B8%BA%E4%BB%80%E4%B9%88%EF%BC%9F%EF%BC%882%EF%BC%89%E5%BD%93%E2%96%B3ABC%E6%BB%A1%E8%B6%B3%E4%BB%80%E4%B9%88%E6%9D%A1%E4%BB%B6%E6%97%B6%EF%BC%8C%E5%9B%9B%E8%BE%B9%E5%BD%A2AFCD%E6%98%AF%E7%9F%A9%E5%BD%A2%EF%BC%8C%E8%AF%B7%E8%AF%B4%E6%98%8E%E7%90%86%E7%94%B1)
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