Answer:
1=b. 2=a
Step-by-step explanation:
Since there are corresponding angles, 1 and b will be congruent, and 2 and a will be congruent.
x , u are parallel lines and v is transversal.
∠1 = ∠b {Corresponding angles}
∠2 = ∠a {corresponding angles}
∠1 +∠a = 180 {linear pair}
∠2 +∠ b = 180 {linear pair}
∠a +∠b = 180 {co interior angles}
