延长CB至Q,使BQ=DF=6,∵AD=AB,BQ=DF,〈FDA=〈QBA=90°,∴RT△ADF≌RT△ABQ,∴〈BAQ=〈FAD,AQ=AF,∵〈FAE=45°,〈DAB=90°,∴〈DAF+〈EAB=45°,∴〈QAE=〈EAB+〈BAQ=〈EAB+〈DAF=45°,∴〈EAQ=〈FAE=45°,∵AE=AE（公...