梯形ABCD,AD//BC,E、F分别在AB、DC上,AE=4,EB=8,DF=2,FC=3梯形AEFD相似于EBCF求AD与BC的长度比?
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![梯形ABCD,AD//BC,E、F分别在AB、DC上,AE=4,EB=8,DF=2,FC=3梯形AEFD相似于EBCF求AD与BC的长度比?](/uploads/image/z/1659644-44-4.jpg?t=%E6%A2%AF%E5%BD%A2ABCD%2CAD%2F%2FBC%2CE%E3%80%81F%E5%88%86%E5%88%AB%E5%9C%A8AB%E3%80%81DC%E4%B8%8A%2CAE%3D4%2CEB%3D8%2CDF%3D2%2CFC%3D3%E6%A2%AF%E5%BD%A2AEFD%E7%9B%B8%E4%BC%BC%E4%BA%8EEBCF%E6%B1%82AD%E4%B8%8EBC%E7%9A%84%E9%95%BF%E5%BA%A6%E6%AF%94%3F)
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