Question 124
be $d_{1}$, $d_{2}$, $d_{3}$ concurrent rights and $A, A^{\prime}$ Dots on the line $d_{1}$, $B, B^{\prime}$ Dots on the line $d_{2}$, $C, C^{\prime}$ Dots on the line $d_{3}$ such as straight lines $(AB)$ and $(A^{\prime}B^{\prime})$ are parallel and the lines $(BC)$ and $(B^{\prime}C^{\prime})$ are parallel. Show that the lines $(AC)$ and $(A^{\prime}C^{\prime})$ are parallel.
