Co-interior angles and parallel lines

Parallel lines cut by a transversal make equal angles (corresponding, alternate, vertical) and angles that add to 180° (straight line, co-interior).

1. Two parallel lines are cut by a transversal. One angle measures 55°. What is the measure of an angle that is its co-interior (same-side interior) angle?
2. Two parallel lines are cut by a transversal. One angle measures 131°. What is the measure of an angle that is its co-interior (same-side interior) angle?
3. Two parallel lines are cut by a transversal. One angle measures 149°. What is the measure of an angle that is its co-interior (same-side interior) angle?
4. Two parallel lines are cut by a transversal. One angle measures 93°. What is the measure of an angle that is its co-interior (same-side interior) angle?
5. Two parallel lines are cut by a transversal. One angle measures 142°. What is the measure of an angle that is its co-interior (same-side interior) angle?
6. Two parallel lines are cut by a transversal. One angle measures 60°. What is the measure of an angle that is its co-interior (same-side interior) angle?
7. Two parallel lines are cut by a transversal. One angle measures 76°. What is the measure of an angle that is its co-interior (same-side interior) angle?
8. Two parallel lines are cut by a transversal. One angle measures 102°. What is the measure of an angle that is its co-interior (same-side interior) angle?
9. Two parallel lines are cut by a transversal. One angle measures 73°. What is the measure of an angle that is its co-interior (same-side interior) angle?
10. Two parallel lines are cut by a transversal. One angle measures 52°. What is the measure of an angle that is its co-interior (same-side interior) angle?
11. Two parallel lines are cut by a transversal. One angle measures 126°. What is the measure of an angle that is its co-interior (same-side interior) angle?
12. Two parallel lines are cut by a transversal. One angle measures 138°. What is the measure of an angle that is its co-interior (same-side interior) angle?
13. Two parallel lines are cut by a transversal. One angle measures 141°. What is the measure of an angle that is its co-interior (same-side interior) angle?
14. Two parallel lines are cut by a transversal. One angle measures 99°. What is the measure of an angle that is its co-interior (same-side interior) angle?
15. Two parallel lines are cut by a transversal. One angle measures 128°. What is the measure of an angle that is its co-interior (same-side interior) angle?
16. Two parallel lines are cut by a transversal. One angle measures 148°. What is the measure of an angle that is its co-interior (same-side interior) angle?
17. Two parallel lines are cut by a transversal. One angle measures 169°. What is the measure of an angle that is its co-interior (same-side interior) angle?
18. Two parallel lines are cut by a transversal. One angle measures 95°. What is the measure of an angle that is its co-interior (same-side interior) angle?
19. Two parallel lines are cut by a transversal. One angle measures 66°. What is the measure of an angle that is its co-interior (same-side interior) angle?
20. Two parallel lines are cut by a transversal. One angle measures 27°. What is the measure of an angle that is its co-interior (same-side interior) angle?