Question

problem 3
two parallel lines are crossed by a transversal
select a pair of vertical angles.

Explanation:

Step1: Recall the definition of vertical angles

Vertical angles are the angles opposite each other when two lines cross.

Step2: Identify vertical angle pairs

In the upper intersection: \(a\) and \(c\) are vertical angles, \(b\) and \(d\) are vertical angles. In the lower intersection: \(e\) and \(g\) are vertical angles, \(f\) and \(h\) are vertical angles.

Answer:

\(a\) and \(c\), \(b\) and \(d\), \(e\) and \(g\), \(f\) and \(h\)