Dear Student,
The quantity of parallel lines must be 3 for this application.This hypothesis is called block hypothesis where at least 3 lines are caught by transversals.
It expresses that, if 3 parallel lines converge 2 transversals then the portions caught on the transversals are corresponding.
for e.g., if the parallel lines are cut by transversals and proportion in which first transversal cuts the 2 parallel lines is a:b and the second one cuts them in c:d, at that point
=>a:b = c:d
=>a/c = b/d
[Ans]
Cheers!!
Regards,
Vikas (B. Tech. 4th year
Thapar University)
