RBSE Class 10 Mathematics Syllabus 2025–26 (Rationalised & Official)

Official Source & PDF

This syllabus is strictly based on the official RBSE Class 10 Anudeshika (Academic Session 2025–26) issued by the Rajasthan Board of Secondary Education, Ajmer.

Official Government PDF:
Download RBSE Class 10 Anudeshika 2025–26 (Official PDF)

Important Note: The syllabus has been rationalised. Topics such as Euclid’s Division Lemma and the entire chapter on Constructions are NOT part of the current syllabus.

Subject Overview

Mathematics is a compulsory core subject in RBSE Class 10. The subject is evaluated as a concept-based and method-oriented discipline, where logical reasoning and correct step-wise solutions are given priority.

RBSE awards marks not only for final answers, but also for proper method, reasoning and presentation.

Marks & Assessment Structure

• Total Marks: 100
• Nature of Examination: Theory-based
• Assessment Focus:
  • Conceptual clarity
  • Step-wise problem solving
  • Accuracy and logical presentation

Shortcut methods without proper justification are generally not rewarded.

Unit-wise Syllabus Structure (Updated for 2025–26)

The following unit structure is fully aligned with the rationalised RBSE syllabus as notified in the official Anudeshika.

1. Number Systems (Real Numbers)

• The Fundamental Theorem of Arithmetic
• Revisiting Irrational Numbers (proofs of √2, √3, √5)

2. Algebra

• Polynomials: Geometrical meaning of zeroes, relationship between zeroes and coefficients
• Pair of Linear Equations in Two Variables: Graphical method, algebraic methods (substitution and elimination)
• Quadratic Equations: Solution by factorisation, nature of roots
• Arithmetic Progressions: nth term, sum of first n terms

3. Geometry

• Triangles: Similarity of triangles, criteria for similarity (AAA, SSS, SAS)
• Circles: Tangents to a circle, number of tangents from a point
• Constructions chapter has been removed

4. Coordinate Geometry

• Distance Formula
• Section Formula (internal division)

5. Trigonometry

• Introduction: Trigonometric ratios, ratios of specific angles (0°, 30°, 45°, 60°, 90°)
• Identities: sin²A + cos²A = 1
• Heights and Distances: Angle of elevation and depression (simple problems)

6. Mensuration

• Areas Related to Circles: Area of sector and segment
• Surface Areas and Volumes: Combination of solids (cube, cuboid, sphere, hemisphere, cylinder, cone)

7. Statistics and Probability

• Statistics: Mean, median and mode of grouped data
• Probability: Theoretical approach

RBSE Examiner Expectations

• Correct use of formulas
• Logical sequence of steps
• Neat presentation and clear working
• Accuracy in calculation

Answers with missing steps or unjustified shortcuts may lose marks even if the final answer is correct.

How Students Should Use This Syllabus

• Study only the topics listed above
• Use the NCERT Mathematics textbook as prescribed
• Practice writing full step-wise solutions
• Avoid studying removed or old syllabus topics

Frequently Asked Questions

Is Euclid’s Division Lemma included in RBSE Class 10?

No. It has been removed from the rationalised syllabus for the 2025–26 session.

Is the Constructions chapter included?

No. The entire chapter on Constructions is not part of the current syllabus.

Which book should students follow?

Students should follow the NCERT Mathematics textbook strictly within the RBSE syllabus framework.

Conclusion:
The RBSE Class 10 Mathematics syllabus 2025–26 is a rationalised, concept-driven framework. Students who prepare strictly according to this official syllabus and focus on logical presentation will be well-prepared for the board examination.