Question

which angles are vertical to each other? ∠12 and ∠2 ∠7 and ∠12 ∠6 and ∠8 ∠12 and ∠3

Explanation:

Step1: Recall vertical - angle definition

Vertical angles are formed when two lines intersect. They are opposite each other and are congruent.

Step2: Analyze each option

• For ∠12 and ∠2: They are not formed by the intersection of the same two - line pair.
• For ∠7 and ∠12: They are not formed by the intersection of the same two - line pair.
• For ∠6 and ∠8: They are adjacent angles, not vertical angles.
• For ∠12 and ∠3: They are vertical angles as they are formed by the intersection of two lines and are opposite each other.

Answer:

∠12 and ∠3