As shown in the figure △ ABC, ad ⊥ BC, be ⊥ AC, BF = AC, if ∠ EBC = 25 °, then ∠ ACF=______ ．

∨ ad ⊥ BC, be ⊥ AC, ∨ ADC = ∨ BDF = ∨ bea = 90 °, ∨ FBD + ∨ BFD = 90 °, ∨ DAC + ∨ AFE = 90 °, ∨ AFE = ∨ BFD, ∨ FBD = ∨ DAC = 25 ° in △ BDF and △ ADC, ∨ BDF = ∨ ADC ∨ DBF = ∨ dacbf = AC, ∨ BDF ≌ ADC (AAS), ∨ DF = DC

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