A student solved the following problem and made an error.
In which line did the student make the first mistake? Line 1: AC=2, DF=2 AC ≅ DF Line 2: ∠A ≅ ∠F Line 3: Length of AB A(0,2) B(2,4) AB=2.83 (Pic inserted)
Line 4: Length of DF.
D (2, 0)
F (4, 2) DF=2.83 Line 5: AB ≅ DF & Line 6: ABC ≅ FDE

Question

A student solved the following problem and made an error.
 In which line did the student make the first mistake?                                                             Line 1: AC=2, DF=2 AC ≅ DF                              Line 2: ∠A ≅ ∠F                                                     Line 3: Length of AB A(0,2) B(2,4)  AB=2.83 (Pic inserted)                                                                   
Line 4: Length of DF. 
D (2, 0)
F (4, 2)   DF=2.83                                               Line 5: AB ≅ DF & Line 6: ABC ≅ FDE