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如图,正三角形ABC内接于⊙O,P是BC上的一点,且PB<PC,PA交BC于E,点F是PC延长线上的点,CF=PB,AB=,PA=4. (1)求证:△ABP≌△ACF; (2)求证:AC2=PA...
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教案备课库《2016年广东省广州市荔湾区中考数学一模试卷》真题及答案
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