CBSE Class 10 Maths Viva Questions with Answers 2025-26

CBSE Class 10 Maths viva questions with answers 2025-26 comprise questions from diverse topics such as statistics and probability, mensuration, number systems, trigonometry, algebra, and coordinate geometry and are most expected in the CBSE 10th Board exam.

The students who practice the viva questions are more likely to score higher in their viva and final examinations. It helps boost their confidence, assess their strengths and weaknesses, devise a thorough preparation strategy, and more. 

This article covers all the important Viva questions likely to appear in CBSE Class 10th Maths Viva 2025-26. The CBSE Board 10th exams will be held from February 15 to March 18, 2025.

50+ CBSE Class 10 Maths Viva Questions with Answers 2025-26

Some of the most important CBSE class 10 maths viva questions with answers 2025-26 are listed below, covering all the major topics and subtopics carefully.

The questions asked in the viva voce are based on the theorems and activities listed in the books. The viva consists of 4 marks, and students must gain in-depth knowledge and increase their understanding of the topics. Here are the top 50+ questions that will help students score higher.

Q1. What is the formula used in an Arithmetic Progression?

Ans. Arithmetic Progression (AP): nth term of an AP = a + (n-1) d

Q2. What is the formula used in the Arithmetic Mean? 

Ans. Arithmetic Mean = Sum of all terms in the AP / Number of terms in the AP

Q3. What is the formula used in the Sum of ‘n’ terms of an AP?

Ans. Sum of ‘n’ terms of an AP = 0.5 n (first term + last term) = 0.5 n [ 2a + (n-1) d ]

Q4. What is the formula to find the common difference of an AP?

Ans. Common difference of an AP: d = a2 – a1.

Q5. How do you find the nth term of an AP formula?

Ans. The formula of Arithmetic Progression, nth term of an AP Formula to find the nth term of an AP is Tn = a + (n – 1) d

Q6. What is the formula to find the sum of an AP?

Ans. AP = 0.5 n (first term + last term) = 0.5 n [ 2a + (n-1) d ]

Q7. What is the HCF (highest common factor)?

Ans. The HCF (Highest Common Factor) of two or more numbers is the highest number among all the common factors of the given numbers. 

Q8. What is the value of tan 90?

Ans. The value of tan 90 is infinite

Q9. What is the HCF (highest common factor)?

Ans. The HCF (Highest Common Factor) of two or more numbers is the highest number among all the common factors of the given numbers.

Q10. When a point is observed, the angle formed by the line of sight with the horizontal level where the point being viewed is above the horizontal plane is known as?

Ans. The angle of elevation.

Q11. The probability of an event can't be?

Ans. Negative

Q12. In a lottery, there are 10 prizes and 20 blanks. What is the probability of getting a prize?

Ans. 1/3

Q13. Given that sin A = 1/2  and cos B = 1/ then the value of (A+B) is?

Ans. 75 degrees

Q14. What is the formula for the area of a square?

Ans. Side square

Q15. C=2πr is the formula for?

Ans. Circumference of a Circle

Q16. The area of a Triangle is?

Ans. ½ base*height

Q17. What is the formula for the area of the rectangle?

Ans. Length*breadth

Q18. Cosec θ =?

Ans. 1/sin θ

Q19. The formula for the cotangent is?

Ans. Cotθ = adjacent/opposite

Q20. What is the area of a sphere?

Ans. 4πr^2

Q21. What is the total surface area of a cylinder?

Ans. TSA=2×π×radius×(radius+height).

Q22. What is the formula for the perimeter of a square?

Ans. 4*Side

Q23. Cos θ equal to?

Ans. 1/sec θ

Q24. What is the area of a parallelogram?

Ans. A=base×height.

Q25. What is the formula for the area of a trapezium?

Ans. A= 1/2 ×(sum of parallel sides)×height.

Q26. What is the tangent (tan) in a right-angled triangle?

Ans. tan(θ)= Adjacent side/Opposite side

Q27. ​What is the formula for the sum of angles in a triangle?

Ans. The sum of the three angles in a triangle is always 180 degrees.

Q28. Define the double-angle formula for sine.

Ans. sin(2θ)=2×sin(θ)×cos(θ).

Q29. Is a triangle a two-dimensional or three-dimensional shape?

Ans. Two-dimensional shape

Q30. An equilateral triangle has two of its sides equal. True or false?

Ans. False

Q31. All the sides of the equilateral triangle are equal?

Ans. Yes

Q32. 10 is a natural number. True or false?

Ans. True

Q33. 10 is a whole number. True or false?

Ans. False

Q34. 8 raised to the power 0 is equal to?

Ans. 1

Q35. The largest 4 digit number is?

Ans. 9999

Q36. The smallest 4-digit number is?

Ans. 1000

Q37. The square of 8 is equal to?

Ans. 64

Q38. The square root of 5 is:

Ans. 2.23

Q39. 3 is a perfect square. True or False?

Ans. False

Q40. A Cube of 5 is equal to?

Ans. 125

Q41. The cube root of 1331 is?

Ans. 11

Q42. 27 is a perfect cube. True or False?

Ans. True

Q43. A square has all its angles equal to?

Ans. 90 degrees

Q44. The area of the rectangle is equal to?

Ans. Length x Breadth

Q45. If a is the side of the cube, then the volume of the cube is?

Ans. side*cube

Q46. A regular polygon has all its sides?

Ans. Equal

Q47. How is the median of a dataset calculated?

Ans. For an odd number of values, the median is the middle value. For an even number, it's the average of the two middle values.

Q48. What is the formula for the mode of a dataset?

Ans. The mode is the value that occurs most frequently in a dataset.

Q49. How do you find the range of a dataset?

Ans. The range is calculated by subtracting the minimum value from the maximum value. Range = Max − Min

Q50. Define probability in the context of statistics.

Ans. Probability is a measure of the likelihood of an event occurring and is expressed as a number between 0 and 1.

Q51. How is the probability of an event A denoted?

Ans. The probability of event A is denoted as P(A).

Q52. How Many Years are there in a Decade?

Ans. 10 years

Q53. How Many Sides are there in a Decagon?

Ans. 10

Q54. 27 is a perfect cube. If true, then what is the perfect cube of 27?

Ans. 3

Q55. What is the product of 121 x 0 x 20 x 2.5?

Ans. 0

Also Read: CBSE Class 10 Maths Syllabus 2025-26

Best Books for CBSE Class 10 Maths Viva Questions with Answers 2025-26

The best books for CBSE Class 10 Maths viva questions with answers 2025-26 are listed below:

1. Mathematics exemplar problems for class X
2. Laboratory Manual - Mathematics, the secondary stage
3. Guidelines for Mathematics Laboratory in Schools, Class X

Also Read: CBSE Class 10 Previous Year Question Paper: Download PDF

CBSE Class 10 Maths Viva Questions 2025-26 Evaluation Scheme

The evaluation scheme for CBSE Class 10 Maths viva questions 2025-26 is 20 Marks (internal assessment), passing marks- 33% in each subject.

Also Read: CBSE Class 10 Maths Paper Analysis 2024