Question

which angles are vertical to each other?
∠4 and ∠2
∠7 and ∠12
∠11 and ∠5
∠1 and ∠12

Explanation:

Step1: Recall the definition of vertical angles

Vertical angles are the angles opposite each other when two lines cross.

Step2: Analyze each pair

• For \(\angle4\) and \(\angle2\): They are not opposite each other when two lines cross.
• For \(\angle7\) and \(\angle12\): They are not opposite each other when two lines cross.
• For \(\angle11\) and \(\angle5\): They are opposite each other when two lines cross.
• For \(\angle1\) and \(\angle12\): They are not opposite each other when two lines cross.

Answer:

\(\angle11\) and \(\angle5\)