Question

⦟9 and ⦟13 are congruent, or supplementary?

Answer 1

angle 9 and angle 13 are congruent

Answer 2

∠9 ≅ ∠13

Explanation:

By the corresponding angles theorem, we can say angles 9 and 13 are congruent.

The corresponding angles theorem is when there is a transversal intersecting two parallel lines, that the angles corresponding are congruent. Corresponding angles are the angles that lie on the same side of the transversal and corners. In this case, we can see that angles 9 and 13 are corresponding angles as they lie on the same side of the transversal and are in the same corresponding corners, therefore they must be congruent by the corresponding angles theorem.