Question

which angles are vertical to each other? ∠11 and ∠7 ∠6 and ∠2 ∠4 and ∠9 ∠12 and ∠10

Explanation:

Step1: Recall vertical - angle definition

Vertical angles are formed when two lines intersect, and they are opposite each other.

Step2: Analyze each option

• For ∠11 and ∠7, they are not formed by the intersection of the same two - line pair.
• For ∠6 and ∠2, they are not formed by the intersection of the same two - line pair.
• For ∠4 and ∠9, they are not formed by the intersection of the same two - line pair.
• For ∠12 and ∠10, they are formed by the intersection of two lines and are opposite each other, so they are vertical angles.

Answer:

∠12 and ∠10