What are two angles that share a common vertex and ray, but do not share any interior points called?

The correct answer identifies two angles that share a common vertex and one common ray, yet have no interior points in common as adjacent angles. To clarify, adjacent angles are formed when two angles sit next to each other on a plane, fulfilling the condition of having a shared vertex and a side while remaining separate otherwise.

For example, if you imagine a straight line where two angles open outward from the same point, they meet the criteria of being adjacent. This definition confirms their positioning without overlapping interiors, emphasizing their distinct boundaries.

In contrast, complementary angles are those whose measures add up to 90 degrees but do not necessarily need to share a vertex or ray. Vertical angles are formed by the intersection of two lines, and corresponding angles occur in parallel lines cut by a transversal. Neither of these forms the scenario presented in the question of sharing a vertex and a ray without overlapping interior areas. Hence, the definition of adjacent angles accurately fits the description given in the question.