如图,在梯形ABCD中,AB//CD,E是BC的中点,AE,DC的延长线交于点F,连接AC,BF (1) 求证:AB=CF (2如图,在梯形ABCD中,AB//CD,E是BC的中点,AE,DC的延长线交于点F,连接AC,BF (1) 求证: AB=CF (2)四边形ABFC是什么四
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![如图,在梯形ABCD中,AB//CD,E是BC的中点,AE,DC的延长线交于点F,连接AC,BF (1) 求证:AB=CF (2如图,在梯形ABCD中,AB//CD,E是BC的中点,AE,DC的延长线交于点F,连接AC,BF (1) 求证: AB=CF (2)四边形ABFC是什么四](/uploads/image/z/5204305-1-5.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E6%A2%AF%E5%BD%A2ABCD%E4%B8%AD%2CAB%2F%2FCD%2CE%E6%98%AFBC%E7%9A%84%E4%B8%AD%E7%82%B9%2CAE%2CDC%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%BA%A4%E4%BA%8E%E7%82%B9F%2C%E8%BF%9E%E6%8E%A5AC%2CBF+%281%29+%E6%B1%82%E8%AF%81%3AAB%3DCF+%EF%BC%882%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E6%A2%AF%E5%BD%A2ABCD%E4%B8%AD%2CAB%2F%2FCD%2CE%E6%98%AFBC%E7%9A%84%E4%B8%AD%E7%82%B9%2CAE%2CDC%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%BA%A4%E4%BA%8E%E7%82%B9F%2C%E8%BF%9E%E6%8E%A5AC%2CBF++%281%29+%E6%B1%82%E8%AF%81%3A+++AB%3DCF+++%EF%BC%882%EF%BC%89%E5%9B%9B%E8%BE%B9%E5%BD%A2ABFC%E6%98%AF%E4%BB%80%E4%B9%88%E5%9B%9B)
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