每一问都要具体解析,第三问请附图解答24.(1)如图1,在△ABC中,∠BCA=90°,∠BAC=60°,过B作AC的平行线交∠BAC的平分线于点D,求证:BD=BA; (2)如图2,在矩形ABCD中,AB=√3BC,分别取线段AD、CD中点F

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