Deleted Syllabus of class X Mathematics (2022-2023)

DELETED SYLLABUS (2022-23)

CLASS 10 MATHEMATICS

CHAPTERS	DELETED TOPICS
Chapter - 1 Real Numbers	🔴 Euclid's Division Lemma (Exercise 1.1) 🔴  Decimal Expansion of Rational Number (Exercise 1.4)
Chapter - 2  Polynomials	🔴 Division Algorithm for Polynomials (Exercise 2.3)
Chapter - 3 Pair of Linear Equations in two variables	🔴 Cross Multiplication Method 🔴 Problems on equation reducible to linear equation (Exercise 3.6)
Chapter - 4 Quadratic Equations	🔴Completing the square method
Chapter - 5 Arithmetic Progression	🔴 No Deletion
Chapter - 6 Triangles	🔴 Deleted Theorems 6.6, 6.7, 6.8 & 6.9 (Theorem) The ratio of the areas of two similar triangles (Theorem) Pythagoras Theorem) (Theorem) Converse of Pythagoras Theorem) 🔴 Exercise 6.4 & 6.5
Chapter - 7 Coordinate Geometry	🔴 Area of Triangle (Exercise 7.3)
Chapter - 8 Introduction to Trigonometry	🔴 Trigonometric Ratios of complementary Angles (Exercise 8.3)
Chapter - 9 Application of Trigonometry	🔴 No Deletion
Chapter - 10 Circles	🔴 No Deletion
Chapter - 11 Constructions	🔴 Entire Chapter is Deleted
Chapter - 12 Area Related to Circles	🔴 No Deletion
Chapter - 13 Surface Area and Volume	🔴 Conversion of one solid to another. (Exercise 13.3) Frustum of Cone (Exercise 13.4)
Chapter - 14 Statistics	🔴 Ogive (Exercise 14.4)
Chapter - 15 Probability	🔴 No Deletion

Deleted Syllabus in Mathematics Class X (2022-2023)

1.) Chapter - 1 
Real Numbers

Deleted Topics — Euclid's division lemma, Decimal representation of rational numbers as terminating or non-terminating recurring decimals.

2.) Chapter - 2
Polynomials 

Deleted Topics — Statements and simple problems on the division algorithm for polynomials with real coefficients.

3.) Chapter - 3

Pair of linear equations in two variables

Deleted Topics — Cross multiplication method. Simple problems on equations are reducible to linear equations.

4.) Chapter - 4
Quadratic equations
Deleted Topics — Method of Completing the squares to solve Quadratic Equations

5.) Chapter - 5
Arithmetic Progressions 
Deleted Topics — No Deletion

6.) Chapter - 6
Triangles
Deleted Topics — The proof of the following theorems is removed and problems related to

these theorems.

a) Theorem 6.3 - If a perpendicular is drawn from the vertex of a right angle to the hypotenuse of a right triangle, then the triangles on each side of the perpendicular are congruent to the whole triangle and similar to each other.

b) Theorem 6.4 - The ratio of the areas of two similar triangles is equal to the ratio of the

squares of their corresponding sides.

c) Theorem 6.5 - In a right-angled triangle, the

square on the hypotenuse is equal to the sum of the squares of the other two sides.

d) Theorem 6.6 - In a triangle, if the square of one side is equal to the sum of the squares of the other two sides then the angle opposite to the first side is a right angle.

7.) Chapter - 7

Coordinate Geometry 
Deleted Topics — Area of Triangle

8.) Chapter - 8
Introduction to Trigonometry 

Deleted Topics — Trigonometric ratios of complementary angles.

9.) Chapter - 9

Application of Trigonometry

Deleted Topics — No Deletion.

10.) Chapter - 10

Circles

Deleted Topics — No Deletion.

11.) Chapter - 11

Constructions 

Deleted Topics — Entire Chapter is deleted.

12.) Chapter - 12

Area related to circles
Deleted Topics — Plane figures involving triangles, simple quadrilaterals and circle

(combination of plane figures)

13.) Chapter - 13
Surface Area and Volumes

Deleted Topics — The frustum of a cone. Problems related to the conversion

of one type of metallic solid to another and other mixed problems. (Problems involving the

combination of more than two different solids to be taken).

14.) Chapter - 14 
Statistics 
Deleted Topics — Cumulative frequency graph.

15.) Chapter - 15
Probability 
Deleted Topics — No Deletion.