Question

If $\left| \begin{matrix} x_{1} & y_{1} & 1 \\ x_{2} & y_{2} & 1 \\ x_{3} & y_{3} & 1 \end{matrix} \right|$ = $\left| \begin{matrix} a_{1} & b_{1} & 1 \\ a_{2} & b_{2} & 1 \\ a_{3} & b_{3} & 1 \end{matrix} \right|$, then the two triangle with

vertices (x₁, y₁), (x₂, y₂), (x₃, y₃) and (a₁, b₁), (a₂, b₂), (a₃, b₃) must be

• A. Similar
• B. Congruent
• C. Never congruent
• D. None

Answer 1

Answer: (D)

None

Answer 2

Area of D^s are equal.