2道数学几何证明题1.如图,AB=AC,∠B=∠C,点D、E分别在AB、AC上,F是DE的中点,求证:AF⊥DE2.如图所示,∠ABC=90°,AB=BC,AE平分∠BAC交BC于E,CD⊥AE交AE的延长线于D.求证:CD=1/2AE
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![2道数学几何证明题1.如图,AB=AC,∠B=∠C,点D、E分别在AB、AC上,F是DE的中点,求证:AF⊥DE2.如图所示,∠ABC=90°,AB=BC,AE平分∠BAC交BC于E,CD⊥AE交AE的延长线于D.求证:CD=1/2AE](/uploads/image/z/2615778-18-8.jpg?t=2%E9%81%93%E6%95%B0%E5%AD%A6%E5%87%A0%E4%BD%95%E8%AF%81%E6%98%8E%E9%A2%981.%E5%A6%82%E5%9B%BE%2CAB%3DAC%2C%E2%88%A0B%3D%E2%88%A0C%2C%E7%82%B9D%E3%80%81E%E5%88%86%E5%88%AB%E5%9C%A8AB%E3%80%81AC%E4%B8%8A%2CF%E6%98%AFDE%E7%9A%84%E4%B8%AD%E7%82%B9%2C%E6%B1%82%E8%AF%81%EF%BC%9AAF%E2%8A%A5DE2.%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E2%88%A0ABC%3D90%C2%B0%2CAB%3DBC%2CAE%E5%B9%B3%E5%88%86%E2%88%A0BAC%E4%BA%A4BC%E4%BA%8EE%2CCD%E2%8A%A5AE%E4%BA%A4AE%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%BA%8ED.%E6%B1%82%E8%AF%81%EF%BC%9ACD%3D1%2F2AE)
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