如图,四边形ABCD的对角线AC 、BD交与点P,过点P作直线交AD于点E,交BC于点F.若PE=PF,且AF+AE=CP+CF.一 求证PA=PC二 若AD=12,AB=15,角DAB=60度,求四边形ABCD的面积
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![如图,四边形ABCD的对角线AC 、BD交与点P,过点P作直线交AD于点E,交BC于点F.若PE=PF,且AF+AE=CP+CF.一 求证PA=PC二 若AD=12,AB=15,角DAB=60度,求四边形ABCD的面积](/uploads/image/z/7123091-59-1.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E7%9A%84%E5%AF%B9%E8%A7%92%E7%BA%BFAC+%E3%80%81BD%E4%BA%A4%E4%B8%8E%E7%82%B9P%2C%E8%BF%87%E7%82%B9P%E4%BD%9C%E7%9B%B4%E7%BA%BF%E4%BA%A4AD%E4%BA%8E%E7%82%B9E%2C%E4%BA%A4BC%E4%BA%8E%E7%82%B9F.%E8%8B%A5PE%3DPF%2C%E4%B8%94AF%2BAE%3DCP%2BCF.%E4%B8%80+%E6%B1%82%E8%AF%81PA%3DPC%E4%BA%8C+%E8%8B%A5AD%3D12%2CAB%3D15%2C%E8%A7%92DAB%3D60%E5%BA%A6%2C%E6%B1%82%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E7%9A%84%E9%9D%A2%E7%A7%AF)
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