Final Answer:
a) The ratio is 1:2, and it is consistent for all transversals.
Step-by-step explanation:
The consistent ratio of 1:2 for all transversals suggests parallel lines. When a transversal intersects two parallel lines, the corresponding angles are congruent, resulting in proportional segments.
This phenomenon is defined by the properties of parallel lines and transversals, indicating a consistent ratio regardless of the specific transversal chosen.
Therefore, observing a constant ratio across various transversals indicates a parallel line relationship with a consistent scale factor between corresponding line segments.