Question

If a transversal is perpendicular to one of the parallel line, then prove that it will be perpendicular to other parallel line.

Answer 1

heya ...

here is ur ans ..


diagram is in the pic...plz refer it..


now ,given that- angle abc = 90degree..

and bc // ef

to prove -- < bef is perpendicular (90 degree)

proof-

bc // ef
corresponding angles are equal


therefore < bef = 90 degree


therefore be is also perpendicular..

pl

Answer 2

Answer:

90 is the correct answer