Given that AB is parallel to CE and CD is parallel to EF , angle ABC is 40 degree then angle CEF is

Given that AB is parallel to CE and CD is parallel to EF , angle ABC i

1.	Given that AB is parallel to CE and CD is parallel to EF , angle ABC is 40 degree then angle CEF is
Answer» 140degree40degree is wrong (challenge pranav mehta) 40 degree as angle abc and angle cef both are alternate interior angles