List all pairs of vertical angles

Adjacent angles are angles that share a common vertex and a side, while non-adjacent angles do not share a common side. Vertical angles are formed when two lines intersect, and they are opposite each other. Here’s how you can list the angles based on these definitions:

1. Two pairs of adjacent angles:

– Angle A and Angle B

– Angle C and Angle D

(In a diagram, these angles would share a common side and vertex.)

2. Two pairs of non-adjacent angles:

– Angle A and Angle C

– Angle B and Angle D

(These angles do not share a side or vertex.)

3. Pairs of vertical angles:

– Angle A and Angle D

– Angle B and Angle C

(These angles are opposite each other created by the intersection of two lines.)

4. Two pairs of angles that are not vertical angles:

– Angle A and Angle B

– Angle C and Angle D

(These angles do not meet the criteria for vertical angles as they are not opposite each other.)

If you have a diagram that includes specific angle labels, please refer to it for the correct identification of angles. Let me know if you need further assistance or clarification!