Why pararell lines are asume that the lines met at infinite
Kindly refer the first part of the link for your query.
https://www.meritnation.com/ask-answer/question/prove-that-two-parallel-lines-intersect-at-infinity-it-is-us/light-reflection-and-refraction/1663302
Regards
https://www.meritnation.com/ask-answer/question/prove-that-two-parallel-lines-intersect-at-infinity-it-is-us/light-reflection-and-refraction/1663302
Regards