Question

1. what type of angle pairs equals 180 degrees when summed?

adjacent angles
vertical angles
supplementary angles
complementary angles

Explanation:

• Adjacent angles: Just share a common side and vertex, sum not necessarily \(180^{\circ}\).
• Vertical angles: Are equal, sum not \(180^{\circ}\) (unless each is \(90^{\circ}\)).
• Supplementary angles: By definition, sum to \(180^{\circ}\).
• Complementary angles: Sum to \(90^{\circ}\).

Answer:

Supplementary angles