图中BF与CE相等
∵∠ACB=90°
∴∠ACE+∠FCB=90°
∵AE⊥CF
∴∠AEC=90°
∴∠ACE+∠EAC=90°
∴∠FCB=∠EAC
∵BF⊥CF
∴∠CFB=90°
∴∠FCB+∠CBF=90°
∴∠ACE=∠CBF
∵AC=BC
∴⊿AEC≌⊿CFB
∴BF=CE
图中BF与CE相等
∵∠ACB=90°
∴∠ACE+∠FCB=90°
∵AE⊥CF
∴∠AEC=90°
∴∠ACE+∠EAC=90°
∴∠FCB=∠EAC
∵BF⊥CF
∴∠CFB=90°
∴∠FCB+∠CBF=90°
∴∠ACE=∠CBF
∵AC=BC
∴⊿AEC≌⊿CFB
∴BF=CE