Here we are providing **Class 7 Math Important Objective** Chapter – 05 Lines and Angles because its very important for Class 7 students as we all know that every board exam question has MCQs so that students should practice these questions so that students can get good marks in board. Class 7 Math Important Objective Chapter – 05 Lines and Angles is an extremely important and its also a year in which students learn the fundamentals of concepts that help them lay a solid foundation for their higher education. Here we are providing in Class 7 Math Important Objective Chapter – 05 Lines and Angles 50+ questions so that students practice more and more. If you want class wise Notes Then **Click Here**

## Class 7 Math Important Objective Chapter – 05 Lines and Angles

1. Which of the following statements is true?

(a) Two adjacent angles can be complementary.

(b) Two adjacent angles cannot be supplementary

(c) An acute angle cannot be adjacent to an obtuse angles.

(d) Two right angles cannot be adjacent angles

**Ans-(a)**

2. A line that intersects two or more lines at distinct points is called

(a) parallel

(b) transversal

(c) intersecting

(d) None of these

**Ans-(b)**

3. The angles in a linear pair are

(a) complementary

(b) supplementary

(c) not adjacent angles

(d) vertically opposite angles

**Ans-(b)**

4. When the sum of the measures of two angles is 90°, the angles are called

(а) supplementary angles

(b) complementary angles

(c) adjacent angles

(d) vertically opposite angles

**Ans-(b)**

5. Which of the following statements is true?

(a) Two acute angles can form a linear pair.

(b) Two obtuse angles can form a linear pair

(c) Two right angles can form a linear pair

(d) One obtuse angle and one acute angle cannot form a linear pair

**Ans-(c)**

6. What happens to the measurement of an angle after the extension of its arms?

(a) Doubles

(b) Triples

(c) Remains the same

(d) Cannot be said

**Ans-(c)**

7. The sum of the measures of two complementary angles is

(a) 180°

(b) 60°

(c) 45°

(d) 90°

**Ans-(d)**

8. If a transversal intersects two parallel lines then the interior angles on the same side of the transversal are

(a) vertically opposite angles

(b) supplementary angles

(c) complementary angles

(d) alternate angles

**Ans-(b)**

9. Which of the following statements is false?

(a) Two vertically opposite angles can be acute

(b) Two vertically opposite angles can be obtuse

(c) Two vertically opposite angles can be right angles

(d) Two vertically opposite angles may be unequal

**Ans-(d)**

10. (180°, 5°) pair of angle is given :

(a) complementary

(b) supplementary

(c) None of these

**Ans-(c)**

11. Find the angle, which is equal to its supplement.

(a) 60°

(b) 90°

(c) 120°

(d) 30°

**Ans-(b)**

12. The measure of the complement of the angle 30° is

(а) 30°

(b) 16°

(c) 60°

(d) 160°

**Ans-(c)**

13. What is the supplement of 105°

(a) 65°

(b) 75°

(c) 85°

(d) 95°

**Ans-(b)**

14. See the figure of Q. 32 above. Which pair of angles are alternate interior angles?

(a) ∠1, ∠5

(b) ∠2, ∠6

(c) ∠3, ∠7

(d) ∠3, ∠5

**Ans-(d)**

15. If two lines intersect at a point, then the vertically opposite angles are always ________ .

(a) supplementary

(b) equal

(c) unequal

(d) none of these

**Ans-(b)**

16. Identify which of the following pairs of angles are supplementary.

(a) 45°, 45°

(b) 63°, 27°

(c) 112°, 68°

(d) 80°, 10°

**Ans-(c)**

17. Which of the following statements is true?

(a) Two acute angles can be complementary to each other

(b) Two obtuse angles can be complementary to each other

(c) Two right angles can be complementary to each other

(d) One obtuse angle and one acute angle can be complementary to each other

**Ans-(a)**

18. What do we call an angle whose measurement is exactly equal to 0°?

(a) An obtuse angle

(b) A straight angle

(c) A zero angle

(d) A right angle

**Ans-(c)**

19. Find the measure of the angle which is half of its supplementary angle?

(a) 60°

(b) 120°

(c) 90°

(d) 45°

**Ans-(a)**

20. What do we call an angle whose measurement is exactly equal to 0o?

(a) An obtuse angle

(b) A straight angle

(c) A zero angle

(d) A right angle

**Ans-(c)**

21. In the following figure, if ∠1 + ∠2 = 100°, then the measure of ∠4 is equal to

(a) 50°

(b) 100°

(c) 80°

(d) 130°

**Ans-(d)**

22. The measure of the complement of the angle 46° is

(a) 90°

(b) 44°

(c) 16°

(d) 136°

**Ans-(b)**

23. Identify which of the following pairs of angles are complementary.

(a) 65°, 115°

(b) 130°, 50°

(c) 63°, 27°

(d) 112°, 68°

**Ans-(c)**

24. What is the measure of the complement of the angle 80°?

(a) 10°

(b) 100°

(c) 36°

(d) 20°

**Ans-(a)**

25. In the following figure, ∠1 + ∠2 + ∠3 = 230°, then the measure of ∠4 is equal to

(a) 130°

(b) 80°

(c) 65°

(d) 90°

**Ans-(a)**

26. If two lines intersect at a point, then the vertically opposite angles are always ________

(a) supplementary

(b) equal

(c) unequal

(d) none of these

**Ans-(b)**

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

(a) 30°

(b) 60°

(c) 46°

(d) 90°

**Ans-(c)**

28. In the given figure value of x is :

(a) 55°

(b) 45°

(c) 65°

(d) None of these

**Ans-(a)**

29. What are the lines which lie on the same plane and do not intersect at any point called?

(a) Perpendicular lines

(b) Intersecting lines

(c) Parallel lines

(d) Collinear lines

**Ans-(c)**

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

(a) 60°, 30°

(b) 66°, 34°

(c) 0°, 90°

(d) 160°, 30°

**Ans-(d)**

31. If two angles are supplementary then the sum of their measures is __________.

(a) 45°

(b) 180°

(c) 90°

(d) 360°

**Ans-(b)**

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

(а) 90°

(b) 0°

(c) 180°

(d) 46°

**Ans-(b)**

33. Measure of the supplement of 100° :

(a) 70°

(b) 75°

(c) 80°

(d) None of these

**Ans-(c)**

34. The measure of the complement of the angle 40° is

(a) 15°

(b) 40°

(c) 50°

(d) 140°

**Ans-(c)**

35. Find the angle, which is equal to its complement.

(a) 45°

(b) 25°

(c) 35°

(d) 30°

**Ans-(a)**

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

(a) adjacent angles

(b) complementary angles

(c) vertically opposite angles

(d) supplementary angles

**Ans-(d)**

37. If two adjacent angles are supplementary, then they form _________ .

(a) a linear pair of angles

(b) vertically opposite angles

(c) Corresponding angles

(d) a ray

**Ans-(a)**

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

(a) 90°

(b) 180°

(c) 360°

(d) none of these

**Ans-(b)**

39. What is the measure of the complement of 65°?

(a) 25°

(b) 55°

(c) 65°

(d) 45°

**Ans-(a)**

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

(a) 30°

(b)45°

(c) 60°

(d) 90°

**Ans-(c)**

41. What is the measure of the complement of 41°?

(a) 135°

(b) 15°

(c) 49°

(d) None of these

**Ans-(c)**

42. Complementary to 0° angle is :

(a) 90°

(b) 95°

(c) 75°

(d) None of these

**Ans-(a)**

43. Which of the following statements is true?

(a) Two acute angles can be supplementary.

(b) Two right angles can be supplementary.

(c) Two obtuse angles can be supplementary.

(d) One obtuse angle and one acute angle cannot be supplementary

**Ans-(b)**

44. Which instrument is used to measure or construct angles?

(a) Compasses

(b) Scale

(c) Protractor

(d) Set squares

**Ans-(c)**

45. Identify which of the following pairs of angles are complementary.

(a) 65°, 115°

(b) 130°, 50°

(c) 63°, 27°

(d) 112°, 68°

**Ans-(c)**

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

(a) 45°

(b) 60°

(c) 30°

(d) 90°

**Ans-(d)**

47. The sum of all angles around a point is

(a) 0deg

(b) 180deg

(c) 360deg

(d) 90deg

**Ans-(c)**

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

(a) 30°

(b) 45°

(c) 90°

(d) 60°

**Ans-(c)**

49. How many rays can be drawn from a given point?

(a) 2

(b) 5

(c) 8

(d) Infinitely many

**Ans-(d)**

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

(a) 90°, 90°

(b) 32°, 58°

(c) 0°, 180°

(d) 76°, 104°

**Ans-(b)**

51. What do we call an angle which exactly measures 90°?

(a) An obtuse angle

(b) An acute angle

(c) A right angle

(d) A reflex angle

**Ans-(c)**

52. What is the measure of the supplement of the angle 0°?

(a) 45°

(b) 90°

(c) 120°

(d) 180°

**Ans-(d)**

53. Identify which of the following pairs of angles are supplementary.

(a) 45°, 45°

(b) 63°, 27°

(c) 112°, 68°

(d) 80°, 10°

**Ans-(c)**

54. The measure of the supplement of the angle 179° is

(a) 1°

(b) 2°

(c) 3°

(d) 4°

**Ans-(a)**