Question

question 4

1. vertical angles are...

congruent
≅
supplementary
+180
all of the above
none of the above

Explanation:

Vertical angles are formed when two lines intersect. By the vertical - angles theorem, vertical angles are congruent. Supplementary angles add up to \(180^{\circ}\). But vertical angles are not supplementary unless each is \(90^{\circ}\). In the given diagram, the vertical angles are \(122^{\circ}\) each (not supplementary as \(122 + 122=244
eq180\)). So only the congruent property holds for vertical angles in general.

Answer:

Congruent \(\cong\)