Vertical angles are pairs of angles that are across from each other when two lines intersect. In the case of four angles sharing a vertex:
- m∠1 = 98°
- m∠2 = 82°
- m∠3 = 98°
- m∠4 = 82°
Since m∠1 and m∠3 both measure 98°, they are across from each other and thus form a vertical pair.
The correct answer is:
∠3