Answer : 34
The line p is parallel to line r. the angles are labelled and attached the diagram below.
Angle B and Angle F are corresponding angles
Corresponding angles are same.
Angle B = 34 so , angle F = 34
Angle G and angle F are vertical opposite angles . Vertical opposite angles are same.
So angle G = angle F
We got angle F is 34
So angle G = 34