To determine the relationship between angle 6 and angle 7, we need to analyze their positions in relation to the two vertical parallel lines (M and N) and the transversal.
- Angle 6 is located at the upper right of the intersection point of line N.
- Angle 7 is located at the lower right of the intersection point of line N.
Since angles 6 and 7 are on the same side of the transversal and between the two parallel lines, they are classified as interior angles.
Furthermore, angles 6 and 7 do not share a common vertex, nor are they opposite each other, and they are not in corresponding positions.
Therefore, the relationship between angle 6 and angle 7 is that they are alternate interior angles.
So, the correct response is: alternate interior angles.