Answer: Corresponding angles.
Step-by-step explanation:
They cant be supplementary, two angles are supplementary when their addition is equal to 180°, in this case, the supplementary angles are 1 with 3, and 5 with 7, for example.
Vertical angles mean that they are in opposite quadrants, so this option can be discarded. (an example of this are angles 1 and 4)
Alternate interior angles mean that the angles are in a "touching" quadrant. so this option can be discarded (an example of this can be angles 1 and 6)
Corresponding angles mean that both angles are in the same quadrant. In this case, you can see that both angles are in the top left quadrant, so they are corresponding angles.
