Question

Mark three noncollinear points A, B, C, as shown. Draw lines through these points taking two at a time. Name the lines. How many such different lines can be drawn?
Figure

Answer 1

Taking points A and B, we can draw only one line $\overleftrightarrow{AB}$.
Taking points B and C, we can draw only one line $\overleftrightarrow{BC}$.
Taking points A and C, we can draw only one line $\overleftrightarrow{AC}$.
We can draw only three lines through these non-collinear points A ,B and C.