From the present question, we can say taht the lines p, q, l, and m are not parallel.
From this, let's analyze each given pair of angles.
1) Angles 6 and 7;
The transversal line is q
These are consecutive interior angles.
2) Angles 16 and 2;
The transversal line is L
These are alternate exterior angles.
3) Angles 13 and 5;
The transversal line is m.
These are corresponding angles.
4) Angles 8 and 10;
The transversal line is L
These are alternate interior angles.
5) Angles 4 and 8;
The transversal line is q
These are alternate exterior angles.
6) if angle 8 is 100°, we conclude that angle 10 is not 100°, because the alternate interior angles are equal only if the lines Q and P are parallel.
7) If angle 8 is 100°, angle 8 is also 100°, because Vertical Angles always have the same value.
