Answer:
1 and 2: Vertical angles
5 and 6: Adjacent angles
Explanation:
In the first image, the two angles are opposite from each other and formed by the intersection of two lines, making 1 and 2 vertical angles.
In the second image, the two angles are right next to each other making 5 and 6 adjacent angles.
Vertical angles: opposite angles formed by the intersection of two lines
Adjacent angles: two angles that share a common vertex and a common side, but do not overlap