If two lines intersect each other then the vertically opposite angles are-

Explanation -

When two lines intersect each other, they create four angles around the point of intersection. Vertically opposite angles are formed in this scenario. 

Vertically opposite angles are pairs of angles that are opposite each other when two lines intersect. These angles are congruent, which means they have the same measure. Vertically opposite angles are formed across from each other at the intersection, and they are not adjacent (they don't share a common side).

For instance, if you have two intersecting lines creating angles a, b, c, and d as shown below:

Angle a is vertically opposite to angle c, and angle b is vertically opposite to angle d.

Thus, angle a is congruent to angle c and angle b is congruent to angle d.

Hence If two lines intersect each other then the vertically opposite angles are always equal.