1. 70°, vertical angles are congruent.
2. 110°, supplementary angles sum to 180°.
3. 50°, alternate interior angles are congruent when lines are parallel.
4. 130°, corresponding angles are congruent when lines are parallel.
5. 60°, angles on a straight line sum to 180°.
6. 120°, vertical angles are congruent.
7. 90°, perpendicular lines form right angles.
8. 45°, complementary angles sum to 90°.
9. 135°, supplementary angles sum to 180°.
10. 45°, vertical angles are congruent.
11. 110°, corresponding angles are congruent when lines are parallel.
12. 70°, alternate interior angles are congruent when lines are parallel.
13. 110°, same-side interior angles are supplementary when lines are parallel.
14. 70°, vertical angles are congruent.
15. 110°, corresponding angles are congruent when lines are parallel.
16. 70°, alternate interior angles are congruent when lines are parallel.
Parent Tip: Review the logic above to help your child master the concept of angles and lines worksheet.
