Chapter-5 ➤ Lines and Angles 1. The sum of the measures of two complementary angles is 180° 60° 45° 90° 2. Which of the following statements is false? When a transversal cuts two lines, such that pairs of corresponding angles are equal, then the lines have to be parallel. When a transversal cuts two lines such that pairs of alternate interior angles are equal, then the lines have to be parallel. When a transversal cuts two lines such that pairs of interior angles on the same side of the transversal are supplementary, then the lines have to be parallel. When a transversal cuts two lines such that pairs of interior angles on the same side of the transversal are complementary, then the lines have to be parallel 3. When the sum of the measures of two angles is 180°, the angles are called adjacent angles complementary angles vertically opposite angles supplementary angles 4. Find the measure of the angle which is half of its supplementary angle? 60° 120° 90° 45° 5. Which of the following statements is true? Two adjacent angles can be complementary Two adjacent angles cannot be supplementary An acute angle cannot be adjacent to an obtuse angles Two right angles cannot be adjacent angles 6. The measure of the supplement of the angle 90° is 45° 60° 30° 90° 7. Which of the following statements is true? Two acute angles can form a linear pair Two obtuse angles can form a linear pair Two right angles can form a linear pair One obtuse angle and one acute angle cannot form a linear pair 8. Which of the following pairs of angles is not a pair of supplementary angles? 90°, 90° 32°, 58° 0°, 180° 76°, 104° 9. Which of the following pairs of angles is not a pair of complementary angles? 60°, 30° 66°, 34° 0°, 90° 160°, 30° 10. What is the measure of the complement of the angle 90°? 90° 0° 180° 46° Loading … Question 1 of 10