Question

which angle is vertical to ∠4? ∠1 ∠5 ∠3 ∠2

Explanation:

Step1: Recall the definition of vertical angles

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

Step2: Identify the angle opposite to ∠4

By observing the figure, ∠2 is opposite to ∠4.

Answer:

∠2