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A. \(\Delta ABC=\Delta A'B'C'\Rightarrow \Delta ABC\backsim \Delta A'B'C'\)
B.\(\widehat{A}=\widehat{A'},\ \widehat{B}=\widehat{B'}\Rightarrow \Delta ABC\backsim \Delta A'B'C'\)
C.\(\frac{AB}{A'B'}=\frac{BC}{B'C'}\Rightarrow \Delta ABC\backsim \Delta A'B'C'\)
D. \(\Delta ABC=\Delta A'B'C'\Rightarrow {{S}_{\Delta ABC}}={{S}_{\Delta A'B'C'}}\)
A. \(\Delta ABC=\Delta A'B'C'\Rightarrow \Delta ABC\backsim \Delta A'B'C'\)
B.\(\widehat{A}=\widehat{A'},\ \widehat{B}=\widehat{B'}\Rightarrow \Delta ABC\backsim \Delta A'B'C'\)
C.\(\frac{AB}{A'B'}=\frac{BC}{B'C'}\Rightarrow \Delta ABC\backsim \Delta A'B'C'\)
D. \(\Delta ABC=\Delta A'B'C'\Rightarrow {{S}_{\Delta ABC}}={{S}_{\Delta A'B'C'}}\)
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