NCERT CLASS 6 | MATHEMATICS | GANITA PRAKASH
CHAPTER 2: LINES AND ANGLES MCQs
1. What does a point represent in geometry?
A. A fixed length
B. A precise location
C. A curved path
D. A surface
Answer: B. A precise location
2. Which of the following is used as a model of a point?
A. The tip of a sharp pencil
B. The edge of a ruler
C. A long piece of string
D. A rectangular sheet
Answer: A. The tip of a sharp pencil
3. How is a point generally denoted?
A. By a small number
B. By a lowercase word
C. By a capital letter
D. By a mathematical operation
Answer: C. By a capital letter
4. What is a line segment?
A. A path that extends endlessly in both directions
B. A part of a line with two end points
C. A path that starts at one point and extends endlessly
D. A curved line without end points
Answer: B. A part of a line with two end points
5. Which path between two points is called a line segment?
A. The longest curved path
B. Any circular path
C. The shortest path joining the two points
D. A path that does not include the end points
Answer: C. The shortest path joining the two points
6. What are the end points of a line segment AB?
A. A and B
B. A and C
C. B and C
D. Only A
Answer: A. A and B
7. How can a line segment AB also be denoted?
A. Only BA
B. Only AB
C. Both AB and BA
D. Neither AB nor BA
Answer: C. Both AB and BA
8. What happens when a line segment is extended endlessly in both directions?
A. It becomes a ray
B. It becomes a line
C. It becomes a point
D. It becomes an angle
Answer: B. It becomes a line
9. How many directions does a line extend in?
A. One
B. Two
C. Three
D. No direction
Answer: B. Two
10. How many distinct lines can pass through two different points?
A. One
B. Two
C. Three
D. Infinitely many
Answer: A. One
11. What is a ray?
A. A line segment with two end points
B. A portion of a line that starts at one point and extends endlessly in one direction
C. A line that extends endlessly in both directions
D. A closed figure
Answer: B. A portion of a line that starts at one point and extends endlessly in one direction
12. What is the starting point of a ray also called?
A. End point
B. Midpoint
C. Initial point
D. Intersection point
Answer: C. Initial point
13. Which of the following is an example of a ray mentioned in the chapter?
A. A beam of light from a lighthouse
B. A closed circle
C. A square sheet of paper
D. A line segment drawn between two points
Answer: A. A beam of light from a lighthouse
14. If a ray starts at A and passes through P, how is it denoted?
A. PA
B. AP
C. AB
D. AA
Answer: B. AP
15. What is an angle formed by?
A. Two line segments with different end points
B. Two rays having a common starting point
C. Two parallel lines
D. Three different points
Answer: B. Two rays having a common starting point
16. What is the common starting point of the two rays forming an angle called?
A. Arm
B. Endpoint
C. Vertex
D. Centre
Answer: C. Vertex
17. What are the two rays forming an angle called?
A. Arms
B. Sides of a triangle
C. Parallel lines
D. End points
Answer: A. Arms
18. In ∠DBE, which letter represents the vertex?
A. D
B. E
C. B
D. None of these
Answer: C. B
19. Which of the following is another correct name for ∠DBE?
A. ∠DB
B. ∠EBD
C. ∠DEB
D. ∠BED
Answer: B. ∠EBD
20. When naming an angle using three letters, where should the vertex be written?
A. First
B. Last
C. In the middle
D. Anywhere
Answer: C. In the middle
21. What determines the size of an angle?
A. The length of its arms
B. The amount of rotation or turn
C. The colour of its arms
D. The distance between two different angles
Answer: B. The amount of rotation or turn
22. Which method is used to compare two angles by placing one over the other?
A. Multiplication
B. Division
C. Superimposition
D. Subtraction
Answer: C. Superimposition
23. While comparing two angles by superimposition, what must overlap?
A. Only the arms
B. Only the vertices
C. The vertices and corresponding arms
D. Only the outer edges
Answer: C. The vertices and corresponding arms
24. When two angles are superimposed and their vertices and arms overlap exactly, what can be concluded?
A. The angles are equal
B. One angle is always larger
C. Both angles are straight
D. Both angles are reflex
Answer: A. The angles are equal
25. Does increasing the length of the arms of an angle necessarily increase its size?
A. Yes, always
B. No, the size depends on the amount of rotation
C. Yes, if both arms are extended
D. Only when the angle is acute
Answer: B. No, the size depends on the amount of rotation
26. What is a straight angle?
A. An angle measuring 45°
B. An angle measuring 90°
C. An angle measuring 180°
D. An angle measuring 360°
Answer: C. An angle measuring 180°
27. How many right angles make one straight angle?
A. One
B. Two
C. Three
D. Four
Answer: B. Two
28. What is the measure of a right angle?
A. 45°
B. 60°
C. 90°
D. 180°
Answer: C. 90°
29. An angle that is exactly half of a straight angle is called:
A. Acute angle
B. Right angle
C. Obtuse angle
D. Reflex angle
Answer: B. Right angle
30. What are two lines called when they meet at right angles?
A. Parallel lines
B. Curved lines
C. Perpendicular lines
D. Horizontal lines
Answer: C. Perpendicular lines
31. What is an acute angle?
A. An angle greater than 90° but less than 180°
B. An angle greater than 180°
C. An angle greater than 0° but less than 90°
D. An angle equal to 180°
Answer: C. An angle greater than 0° but less than 90°
32. Which of the following is an acute angle?
A. 30°
B. 90°
C. 120°
D. 180°
Answer: A. 30°
33. What is an obtuse angle?
A. An angle less than 90°
B. An angle greater than 90° but less than 180°
C. An angle equal to 90°
D. An angle equal to 180°
Answer: B. An angle greater than 90° but less than 180°
34. Which of the following is an obtuse angle?
A. 45°
B. 90°
C. 135°
D. 180°
Answer: C. 135°
35. Which of the following is a reflex angle?
A. 60°
B. 90°
C. 180°
D. 240°
Answer: D. 240°
36. What is the measure of one full turn?
A. 90°
B. 180°
C. 270°
D. 360°
Answer: D. 360°
37. How many equal parts is a full turn divided into when measuring angles in degrees?
A. 90
B. 180
C. 360
D. 100
Answer: C. 360
38. What is the measure of each unit part of a full turn?
A. 1°
B. 2°
C. 5°
D. 10°
Answer: A. 1°
39. Which instrument is used to measure angles?
A. Compass
B. Protractor
C. Divider
D. Scale only
Answer: B. Protractor
40. How many equal parts are there in a semicircular protractor?
A. 90
B. 100
C. 180
D. 360
Answer: C. 180
41. What is the measure of a half turn?
A. 45°
B. 90°
C. 180°
D. 360°
Answer: C. 180°
42. What is the measure of a quarter turn?
A. 45°
B. 90°
C. 180°
D. 270°
Answer: B. 90°
43. In the chapter’s explanation of the protractor, what does a long mark represent?
A. 1°
B. 5°
C. 10°
D. 15°
Answer: C. 10°
44. What does a medium-sized mark represent in the unlabelled protractor described in the chapter?
A. 2°
B. 5°
C. 10°
D. 20°
Answer: B. 5°
45. What does bisecting an angle mean?
A. Doubling the angle
B. Dividing the angle into two equal parts
C. Making the angle straight
D. Increasing the length of its arms
Answer: B. Dividing the angle into two equal parts
46. What is an angle bisector?
A. A line that doubles an angle
B. A line that divides an angle into two equal angles
C. A line that makes two parallel lines
D. A line that measures the length of an angle
Answer: B. A line that divides an angle into two equal angles
47. According to the chapter, which ancient text mentions a wheel with 360 spokes?
A. Ramayana
B. Mahabharata
C. Rigveda
D. Arthashastra
Answer: C. Rigveda
48. Which number system is mentioned in the chapter in connection with ancient Babylonian mathematicians’ use of divisions of 60 and 360?
A. Decimal number system
B. Binary number system
C. Sexagesimal number system
D. Roman number system
Answer: C. Sexagesimal number system
49. According to the chapter, what is the angle between the hands of a clock at 1 o’clock?
A. 15°
B. 30°
C. 60°
D. 90°
Answer: B. 30°
50. What is the angle between two neighbouring spokes of an Ashoka Chakra with 24 equally spaced spokes?
A. 10°
B. 12°
C. 15°
D. 24°
Answer: C. 15°
- Chapter 1: Patterns in Mathematics MCQs
- Chapter 2: Lines and Angles MCQs
- Chapter 3: Number Play MCQs
- Chapter 4: Data Handling and Presentation MCQs
- Chapter 5: Prime Time MCQs
- Chapter 6: Perimeter and Area MCQs
- Chapter 7: Fractions MCQs
- Chapter 8: Playing with Constructions MCQs
- Chapter 9: Symmetry MCQs
- Chapter 10: The Other Side of Zero MCQs
