Question

geometry a (fa25) co 3 / geometry a / angles and

1. what kind of angles are ∠1 and ∠2?

corresponding angles
vertical angles
supplementary angles
alternate exterior angles

Explanation:

Step1: Recall angle - type definitions

Corresponding angles are in the same relative position at each intersection where a straight - line crosses two others. Vertical angles are opposite each other when two lines intersect. Supplementary angles add up to 180 degrees. Alternate exterior angles are outside the two lines and on opposite sides of the transversal.

Step2: Analyze ∠1 and ∠2

∠1 and ∠2 share a common vertex and a common side, and their non - common sides form a straight line. They are adjacent and their sum is 180 degrees. So they are supplementary angles.

Answer:

Supplementary Angles