1. The measure of the angle which is equal to its complement is

2. Which of the following pairs of angles is not a pair of complementary angles?

3. What is the measure of the complement of the angle 90°?

4. When the sum of the measures of two angles is 180°, the angles are called

5. The sum of the measures of two supplementary angles is

6. The measure of the supplement of the angle 120° is

7. Which of the following statements is true?

8. The measure of the supplement of the angle 90° is

9. The measure of the angle which is equal to its supplement is

10. Which of the following pairs of angles is not a pair of supplementary angles?