Question

13In the fig 'y' is parallel to 'CD' , then value of 'AB' is(1 Point)​

Answer 1

Answer:

Given AB parallel to CD

then

2y+y+y+5y=180°(alternate interior angles of a transversal intersecting two parallel lines are supplementary)

4y+5y=180°

9y=180

y=180/9

y=20°

hope it helps