此图.BD,CE是△ABC的高,点F在BD上,BF=AC.点G在CE的延长线上,AB=CG,试说明AG⊥AF.http://hiphotos.baidu.com/%CB%AE%ED%B5_april/pic/item/773b2f5817be4547377abe56.jpg
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![此图.BD,CE是△ABC的高,点F在BD上,BF=AC.点G在CE的延长线上,AB=CG,试说明AG⊥AF.http://hiphotos.baidu.com/%CB%AE%ED%B5_april/pic/item/773b2f5817be4547377abe56.jpg](/uploads/image/z/4018012-52-2.jpg?t=%E6%AD%A4%E5%9B%BE.BD%2CCE%E6%98%AF%E2%96%B3ABC%E7%9A%84%E9%AB%98%2C%E7%82%B9F%E5%9C%A8BD%E4%B8%8A%2CBF%3DAC.%E7%82%B9G%E5%9C%A8CE%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%B8%8A%2CAB%3DCG%2C%E8%AF%95%E8%AF%B4%E6%98%8EAG%E2%8A%A5AF.http%3A%2F%2Fhiphotos.baidu.com%2F%25CB%25AE%25ED%25B5_april%2Fpic%2Fitem%2F773b2f5817be4547377abe56.jpg)
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