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  • Class 9 Maths Chapter 5 MCQ Online test with Answers
  • MCQs on Class 9 Maths Chapter 5 Introduction to Euclid’s Geometry FAQs
mcqs /
MCQs on Class 9 Maths Chapter 5 Introduction to Euclid’s Geometry
mcqs /
MCQs on Class 9 Maths Chapter 5 Introduction to Euclid’s Geometry

MCQs on Class 9 Maths Chapter 5 Introduction to Euclid’s Geometry

By Karan Singh Bisht

|

Updated on 12 Sep 2025, 12:15 IST

Class 9 Maths Chapter 5 – Introduction to Euclid’s Geometry MCQs are available here for online practice. Each objective-type question comes with the correct answer and a detailed explanation. Students can attempt these chapter-wise problems designed as per the latest CBSE syllabus and NCERT guidelines. You can also explore the set of Important Questions for Class 9 Maths for additional practice.

Class 9 Maths Chapter 5 MCQ Online test with Answers

MCQs for the Euclid’s Geometry chapter are available here, each with four options. Students need to select the correct answer for every question.

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1. Which of the following is not a basic concept of Euclidean Geometry?

A) Point

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B) Line

C) Plane

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D) Vector

Solution: D) Vector

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2. A point that lies on a line is called:

A) Collinear

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B) Coplanar

C) Concurrent

D) None of these

Solution: A) Collinear

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3. How many postulates did Euclid propose in his geometry?

A) 3

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B) 4

C) 5

D) 6

Solution: C) 5

Also Check: Class 9 Maths Number System MCQs with Answer

4. Which postulate states that a straight line segment can be drawn joining any two points?

A) Postulate 1

B) Postulate 2

C) Postulate 3

D) Postulate 4

Solution: A) Postulate 1

5. Which of the following is not a part of a line segment?

A) Endpoints

B) Length

C) Area

D) Midpoint

Solution: C) Area

6. How many dimensions does a point have?

A) 0

B) 1

C) 2

D) 3

Solution: A) 0

7. Which of the following is a postulate of Euclidean Geometry?

A) The angles of a triangle sum up to 180°.

B) A line contains at least two points.

C) A straight line can be extended indefinitely.

D) All of the above

Solution: D) All of the above

MCQ Questions for Class 9 Subject-wise
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8. If two lines intersect at a point, they are called:

A) Parallel

B) Perpendicular

C) Concurrent

D) Collinear

Solution: C) Concurrent

9. A part of a line with two endpoints is called a:

A) Point

B) Plane

C) Line segment

D) Ray

Solution: C) Line segment

10. Which of the following is not a Euclidean construction tool?

A) Compass

B) Ruler

C) Protractor

D) Divider

Solution: C) Protractor

Also Check: Class 9 Maths Chapter 12 Heron’s Formula MCQs

11. How many angles does a triangle have?

A) 1

B) 2

C) 3

D) 4

Solution: C) 3

12. Which postulate states that a circle can be drawn with any given radius and center?

A) Postulate 1

B) Postulate 2

C) Postulate 3

D) Postulate 4

Solution: B) Postulate 2

13. Two intersecting lines form how many pairs of adjacent angles?

A) 1

B) 2

C) 3

D) 4

Solution: B) 2

14. Which of the following is a basic concept of geometry?

A) Point

B) Angle

C) Circle

D) All of the above

Solution: D) All of the above

15. If two lines do not intersect, they are called:

A) Parallel

B) Perpendicular

C) Concurrent

D) Collinear

Solution: A) Parallel

Also Read: Class 9 Maths Chapter 13 Surface Areas and Volumes MCQs

16. Which postulate states that a line segment can be produced indefinitely?

A) Postulate 1

B) Postulate 2

C) Postulate 3

D) Postulate 4

Solution: C) Postulate 3

17. An angle with a measure less than 90° is called:

A) Acute angle

B) Obtuse angle

C) Right angle

D) Straight angle

Solution: A) Acute angle

18. Which of the following is a non-Euclidean geometry?

A) Spherical geometry

B) Hyperbolic geometry

C) Elliptic geometry

D) All of the above

Solution: D) All of the above

19. Which postulate states that a circle can have only one center?

A) Postulate 1

B) Postulate 2

C) Postulate 3

D) Postulate 4

Solution: B) Postulate 2

20. The sum of all angles around a point is:

A) 90°

B) 180°

C) 270°

D) 360°

Solution: D) 360°

21. Which of the following is a valid construction in Euclidean Geometry?

A) Constructing an equilateral triangle with sides of different lengths

B) Dividing an angle into four equal parts

C) Constructing a square with two sides of equal length

D) All of the above

Solution: B) Dividing an angle into four equal parts

22. An angle with a measure of 90° is called:

A) Acute angle

B) Obtuse angle

C) Right angle

D) Straight angle

Solution: C) Right angle

23. How many endpoints does a ray have?

A) 0

B) 1

C) 2

D) 3

Solution: B) 1

24. Which postulate states that two intersecting lines form vertical angles?

A) Postulate 1

B) Postulate 2

C) Postulate 3

D) Postulate 4

Solution: C) Postulate 3

25. Which of the following is a line that intersects two or more lines at distinct points?

A) Parallel lines

B) Perpendicular lines

C) Transversal

D) Skew lines

Solution: C) Transversal

26. A polygon with 10 sides is called:

A) Octagon

B) Nonagon

C) Decagon

D) Dodecagon

Solution: C) Decagon

27. Which postulate states that a unique line can be drawn through any two distinct points?

A) Postulate 1

B) Postulate 2

C) Postulate 3

D) Postulate 4

Solution: A) Postulate 1

28. How many parallel lines can be drawn to a given line through a point not on the line?

A) 0

B) 1

C) 2

D) Infinite

Solution: D) Infinite

29. Which of the following is a part of a circle?

A) Arc

B) Chord

C) Radius

D) All of the above

Solution: D) All of the above

30. Which postulate states that if two lines intersect, they do so at exactly one point?

A) Postulate 1

B) Postulate 2

C) Postulate 3

D) Postulate 4

Solution: D) Postulate 4

31. An angle with a measure greater than 90° but less than 180° is called:

A) Acute angle

B) Obtuse angle

C) Right angle

D) Straight angle

Solution: B) Obtuse angle

32. Which of the following is a line that lies in the same plane as two other lines but does not intersect them?

A) Parallel lines

B) Perpendicular lines

C) Transversal

D) Skew lines

Solution: A) Parallel lines

33. Which postulate states that if a line intersects two lines so that the sum of the interior angles on the same side is less than 180°, then the two lines will meet on that side?

A) Postulate 1

B) Postulate 2

C) Postulate 3

D) Postulate 4

Solution: C) Postulate 3

34. An angle with a measure of 180° is called:

A) Acute angle

B) Obtuse angle

C) Right angle

D) Straight angle

Solution: D) Straight angle

More Resources for Class 9 NCERT

  • NCERT Solutions for Class 9 Maths
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35. Which of the following is not a part of a circle?

A) Diameter

B) Circumference

C) Area

D) Vertex

Solution: D) Vertex

36. Which postulate states that if a point lies on a line segment, then it is also on the line containing the segment?

A) Postulate 1

B) Postulate 2

C) Postulate 3

D) Postulate 4

Solution: B) Postulate 2

37. An angle with a measure of 360° is called:

A) Acute angle

B) Obtuse angle

C) Right angle

D) Straight angle

Solution: D) Straight angle

38. Which postulate states that two distinct lines cannot have more than one point in common?

A) Postulate 1

B) Postulate 2

C) Postulate 3

D) Postulate 4

Solution: A) Postulate 1

39. A closed figure made up of line segments is called a:

A) Point

B) Line

C) Polygon

D) Ray

Solution: C) Polygon

40. Which postulate states that if two lines are drawn which intersect a third in such a way that the sum of the inner angles on one side is less than two right angles, then the two lines will intersect each other on that side if extended far enough?

A) Postulate 1

B) Postulate 2

C) Postulate 3

D) Postulate 4

Solution: D) Postulate 4

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MCQs on Class 9 Maths Chapter 5 Introduction to Euclid’s Geometry FAQs

Where can I find MCQs for Class 9 Maths Chapter 5 – Introduction to Euclid’s Geometry?

You can find well-structured MCQs for this chapter on Infinity Learn, which provides NCERT-based resources designed as per the latest CBSE syllabus.

How can I download the MCQs for Euclid’s Geometry in Class 9 Maths?

On Infinity Learn, students can easily download a free PDF of MCQs with answers. This allows offline practice and helps with effective exam revision.

What are the benefits of solving MCQs for this chapter?

  • Strengthens understanding of Euclid’s postulates and axioms
  • Improves speed and accuracy in solving objective-type questions
  • Prepares students for school exams, Olympiads, and competitive tests
  • Helps in self-assessment and quick revision through Infinity Learn’s curated material

Which topics are covered in the MCQs of Chapter 5 – Introduction to Euclid’s Geometry?

The MCQs on Infinity Learn cover:

  • Euclid’s definitions, postulates, and axioms
  • The link between axioms and theorems
  • Fundamental geometry concepts introduced in this chapter

Are the MCQs useful only for exams, or for overall learning too?

They are useful for both. With Infinity Learn MCQs, students not only prepare for exams but also gain conceptual clarity and confidence in applying geometry principles.

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