Question

1. which pair of angles is often adjacent and their measures total 180 degrees? vertical angles supplementary angles interior angles complementary angles

Explanation:

• Vertical angles: Vertical angles are equal in measure, not necessarily summing to \(180^{\circ}\).
• Supplementary angles: By definition, supplementary angles are two angles whose measures add up to \(180^{\circ}\). When they are adjacent, they form a linear pair.
• Interior angles: The term "interior angles" is too general. In a triangle, the sum of interior angles is \(180^{\circ}\), but it doesn't specifically refer to a pair of adjacent angles summing to \(180^{\circ}\).
• Complementary angles: Complementary angles are two angles whose measures add up to \(90^{\circ}\), not \(180^{\circ}\).

Answer:

Supplementary angles