(1)已知:如图5-8,线段AC、BD交于O,∠AOB为钝角,AB=CD,BF⊥AC于F,DE⊥AC于E,AE=CF.你的图是不是画错了,应该是这样,如图1所示1、在直角⊿ABF和直角⊿CDE中,AB=CD,AF=AC-CF,CE=AC-AE (AF=AE+EF,CE=CF+EF
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![(1)已知:如图5-8,线段AC、BD交于O,∠AOB为钝角,AB=CD,BF⊥AC于F,DE⊥AC于E,AE=CF.你的图是不是画错了,应该是这样,如图1所示1、在直角⊿ABF和直角⊿CDE中,AB=CD,AF=AC-CF,CE=AC-AE (AF=AE+EF,CE=CF+EF](/uploads/image/z/9342610-34-0.jpg?t=%EF%BC%881%EF%BC%89%E5%B7%B2%E7%9F%A5%EF%BC%9A%E5%A6%82%E5%9B%BE5%EF%BC%8D8%2C%E7%BA%BF%E6%AE%B5AC%E3%80%81BD%E4%BA%A4%E4%BA%8EO%2C%E2%88%A0AOB%E4%B8%BA%E9%92%9D%E8%A7%92%2CAB%EF%BC%9DCD%2CBF%E2%8A%A5AC%E4%BA%8EF%2CDE%E2%8A%A5AC%E4%BA%8EE%2CAE%EF%BC%9DCF%EF%BC%8E%E4%BD%A0%E7%9A%84%E5%9B%BE%E6%98%AF%E4%B8%8D%E6%98%AF%E7%94%BB%E9%94%99%E4%BA%86%2C%E5%BA%94%E8%AF%A5%E6%98%AF%E8%BF%99%E6%A0%B7%2C%E5%A6%82%E5%9B%BE1%E6%89%80%E7%A4%BA1%E3%80%81%E5%9C%A8%E7%9B%B4%E8%A7%92%E2%8A%BFABF%E5%92%8C%E7%9B%B4%E8%A7%92%E2%8A%BFCDE%E4%B8%AD%2CAB%3DCD%2CAF%3DAC%EF%BC%8DCF%2CCE%3DAC%EF%BC%8DAE+%EF%BC%88AF%3DAE%2BEF%2CCE%3DCF%2BEF)
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