Question

Given lines l₁ l₂ and l₃ in fig., are parallel. The value of x is :

• A. 40^o
• B. 140^o
• C. 50^o
• D. 80^o

Answer 1

The correct option is B

140^o

We know corresponding angles are equal.

So, ∠1 = ∠2 = 40^o

Therefore, x = 180^o - 40^o = 140^o