Vertical angles are the angles that are opposite each other when two lines intersect. They are formed when two lines cross, creating pairs of angles that share a vertex but not a side.
Given:
- m∠1 = 98°
- m∠2 = 82°
- m∠3 = 98°
- m∠4 = 82°
Since m∠1 = 98° and m∠3 = 98°, ∠1 and ∠3 are vertical angles. Therefore, the angle that is a vertical pair with ∠1 is ∠3.