Question

How many pairs of corresponding angles are there for a transversal and two parallel lines?

Answer 1

A transversal and two parallel lines form total $8$ angles.


Also, the corresponding angles come in pairs.
$\therefore$ Total number of pairs of corresponding angles are $\frac{8}{2}=4$

The pairs are $\{\angle 1,\angle 5\},\{\angle 2,\angle 6\},\{\angle 3,\angle 7\}$ and $\{\angle 4,\angle 8\}.$