如图,正方形ABCD边长为4,点E在边AB上一点,过点A作AF垂直于DE,垂足为G,AF与边BC相交与点F联结DF,EF,结果三角形DEF的面积为13/2,求AE的长
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![如图,正方形ABCD边长为4,点E在边AB上一点,过点A作AF垂直于DE,垂足为G,AF与边BC相交与点F联结DF,EF,结果三角形DEF的面积为13/2,求AE的长](/uploads/image/z/15234245-53-5.jpg?t=%E5%A6%82%E5%9B%BE%2C%E6%AD%A3%E6%96%B9%E5%BD%A2ABCD%E8%BE%B9%E9%95%BF%E4%B8%BA4%2C%E7%82%B9E%E5%9C%A8%E8%BE%B9AB%E4%B8%8A%E4%B8%80%E7%82%B9%2C%E8%BF%87%E7%82%B9A%E4%BD%9CAF%E5%9E%82%E7%9B%B4%E4%BA%8EDE%2C%E5%9E%82%E8%B6%B3%E4%B8%BAG%2CAF%E4%B8%8E%E8%BE%B9BC%E7%9B%B8%E4%BA%A4%E4%B8%8E%E7%82%B9F%E8%81%94%E7%BB%93DF%2CEF%2C%E7%BB%93%E6%9E%9C%E4%B8%89%E8%A7%92%E5%BD%A2DEF%E7%9A%84%E9%9D%A2%E7%A7%AF%E4%B8%BA13%2F2%2C%E6%B1%82AE%E7%9A%84%E9%95%BF)
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