如图,四边形ABCD是菱形,过AB的中点E作AC的垂线EF,交AD于点M,交点CD的延长线于点F(1)求证AM等于DM(2)若DF等于2,求菱形ABCD的周长我知道我图没画好,将就看一下,双击图片,可看大图
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![如图,四边形ABCD是菱形,过AB的中点E作AC的垂线EF,交AD于点M,交点CD的延长线于点F(1)求证AM等于DM(2)若DF等于2,求菱形ABCD的周长我知道我图没画好,将就看一下,双击图片,可看大图](/uploads/image/z/6131838-30-8.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E6%98%AF%E8%8F%B1%E5%BD%A2%2C%E8%BF%87AB%E7%9A%84%E4%B8%AD%E7%82%B9E%E4%BD%9CAC%E7%9A%84%E5%9E%82%E7%BA%BFEF%2C%E4%BA%A4AD%E4%BA%8E%E7%82%B9M%2C%E4%BA%A4%E7%82%B9CD%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%BA%8E%E7%82%B9F%EF%BC%881%EF%BC%89%E6%B1%82%E8%AF%81AM%E7%AD%89%E4%BA%8EDM%282%29%E8%8B%A5DF%E7%AD%89%E4%BA%8E2%2C%E6%B1%82%E8%8F%B1%E5%BD%A2ABCD%E7%9A%84%E5%91%A8%E9%95%BF%E6%88%91%E7%9F%A5%E9%81%93%E6%88%91%E5%9B%BE%E6%B2%A1%E7%94%BB%E5%A5%BD%2C%E5%B0%86%E5%B0%B1%E7%9C%8B%E4%B8%80%E4%B8%8B%2C%E5%8F%8C%E5%87%BB%E5%9B%BE%E7%89%87%EF%BC%8C%E5%8F%AF%E7%9C%8B%E5%A4%A7%E5%9B%BE)
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