Question

4 multiple answer 1 point
1
2
adjacent
vertical
complementary
supplementary
linear pair

Explanation:

Step1: Define adjacent angles

Adjacent angles share a common vertex and a common side. Angles 1 and 2 share a common vertex and a common side.

Step2: Define vertical angles

Vertical angles are non - adjacent angles formed by two intersecting lines. Angles 1 and 2 are adjacent, not vertical.

Step3: Define complementary angles

Complementary angles add up to 90 degrees. There is no information indicating that ∠1+∠2 = 90°.

Step4: Define supplementary angles

Supplementary angles add up to 180 degrees. There is no information indicating that ∠1 + ∠2=180°.

Step5: Define linear pair

A linear pair is a pair of adjacent angles whose non - common sides are opposite rays. There is no indication that the non - common sides of ∠1 and ∠2 are opposite rays.

Answer:

adjacent