CBSE Class 10 (Math) Reduced Syllabus

CBSE Syllabus 2020-21 has been revised and reduced by 30% for 9th, 10th, 11th & 12th. Due to COVID-19 pandemic & nationwide lockdown, ongoing academic session is affected. After a thorough analysis of the situation and suggestions from experts & teachers, the Central Board of Secondary Education (CBSE) has been instructed by the HRD Ministry to reduce the syllabus. In response, after careful analysis and review, CBSE has cut 30% syllabus.

**CHAPTER: TOPICS REMOVED**

**UNIT I-NUMBER SYSTEMS**

[1]REAL NUMBERS: Euclid’s division lemma

**UNIT II-ALGEBRA**

[2]POLYNOMIALS : Statement and simple problems on division algorithmfor polynomials with real coefficients.

[3]PAIR OF LINEAR EQUATIONS IN TWO VARIABLES : cross multiplication method

[4]QUADRATIC EQUATIONS: Situational problems based on equations reducible to quadratic equations ARITHMETIC PROGRESSIONS: Application in solving daily life problems based on the sum to n terms

**UNIT III-COORDINATE GEOMETRY**

[5]COORDINATE GEOMETRY: Area of a triangle.

**UNIT IV-GEOMETRY**

[6]TRIANGLES Proof of the following theorems are deleted : The ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides. , In a triangle, if the square on one side is equal to sum

of the squares on the other two sides, the angle

opposite to the first side is a right angle.

[7]CIRCLES No deletion

[8]CONSTRUCTIONS: Construction of a triangle similar to a given triangle.

**UNIT V- TRIGONOMETRY**

[9]INTRODUCTION TO TRIGONOMETRY: motivate the ratios whichever are defined at 0o and 90o.

[10]TRIGONOMETRIC IDENTITIES: Trigonometric ratios of complementary angles.

[11]HEIGHTS AND DISTANCES No deletion

**UNIT VI-MENSURATION**

[12]AREAS RELATED TO CIRCLES: Problems on the central angle of 120°

SURFACE AREAS AND

[13]VOLUMES: Frustum of a cone.

**UNIT VII-STATISTICS & PROBABILITY**

[14]STATISTICS: Step deviation Method for finding the mean, Cumulative Frequency graph

[15]PROBABILITY No deletion

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