Question

Which of the following can be used to prove $\Delta ABC$ and $\Delta DEF$ are similar?

• A. AAA postulate
• B. SAS postulate
• C. SSS postulate
• D. SSA postulate

Answer 1

Answer: (C)

SSS postulate

From the figure, $\Delta ABC$ and $\Delta DEF$ are similar by SSS postulate because three sides of one triangle are congruent to three sides of another triangle.
Therefore, the given triangles are similar by SSS similarity postulate.