Question

इन द गिवन फिगर एबी पैरेलल टो सीडी पार्लर टू फाइंड द वैल्यू ऑफ एक्स​

Answer 1

Answer:

From the figure:

x + 50o = 180o (Linear pair)

x = 180o - 50o

x = 130o

And,

y = 130o (Vertically opposite angles)

Now,

x = y = 130o (Alternate interior angles)

Hence,

 The theorem says that when the lines are parallel, that the alternate interior angles are equal. And thus the lines must be parallel.

AB || CD