Question

plz solve it need a full solution

Answer 1

Here is your solution,

x+50° = 180° (Linear Pair)

∠x = 180°-50°

∠x = 130°

∠y = 130° (Vertically Opposite Angles)

As, ∠x = ∠y = 130° (Alternate Angles)

So, AB is parallel to CD

I Hope it helped.............

Answer 2

if 50+x=180[linear pair]
then,x=180-50
x=130
and y=130 [vertically opposite angles]
therefoer AB||CD [alternate interior axiom]
hence, proved