Question

which angles are vertical to each other? ∠14 and ∠2 ∠1 and ∠11 ∠4 and ∠2 ∠1 and ∠2

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 $\angle14$ and $\angle2$: They are not formed by two - line intersection in the vertical - angle way.
• For $\angle1$ and $\angle11$: They are not formed by two - line intersection in the vertical - angle way.
• For $\angle4$ and $\angle2$: They are formed by two lines crossing and are opposite each other.
• For $\angle1$ and $\angle2$: They are adjacent angles (share a common side and vertex), not vertical angles.

Answer:

$\angle4$ and $\angle2$