Question

Please solve it and give the solution​

Answer 1

Answer:

You are in 8th DAV right?

Your answer

1)AB parallel DC as both lines have same angles ie 40°

Answer 2

Answer:

angle ABC=angle BCD

Step-by-step explanation:

so AB parallel CD

then 160+20 = 180 so EF parallel CD

as AB parallel CD parallel EF

SO AB parallel EF