Here you will know the names of the topics and chapters removed from the CBSE Class 9 Maths Syllabus. Check the chapterwise contents that will not be assessed in the internal assessment and the annual examination.
Since, CBSE has revised the syllabus of all subjects of Class 9, it becomes quite necessary for students to know the topics and chapters removed from the previous syllabus so that they do not study the irrelevant content. Knowing the deleted syllabus will help students to make the right plan for preparing other topics properly. This will help them in carrying out productive study sessions while being at home. Check below the complete list of the topics/chapters removed from the CBSE Class 9 Maths Syllabus.
CBSE Class 9 Mathematics (041)  Deleted portion:
UNIT INUMBER SYSTEMS 
Chapter  Topics 
REAL NUMBERS  · Representation of terminating / nonterminating recurring decimals on the number line through successive magnification. · Explaining that every real number is represented by a unique point on the number line and conversely, viz. every point on the number line represents a unique real number. · Definition of nth root of a real number. 
UNIT IIALGEBRA 
Chapter  Topics 
POLYNOMIALS  · Motivate and State the Remainder Theorem with examples. Statement and proof of the Factor Theorem. · x3+y3+z33xyz 
LINEAR EQUATIONS IN TWO VARIABLES  Examples, problems on Ratio and Proportion 
UNIT IIICOORDINATE GEOMETRY 
Chapter  Topics 
COORDINATE GEOMETRY  No deletion 
UNIT IVGEOMETRY 
Chapter  Topics 
INTRODUCTION TO EUCLID'S GEOMETRY  Delete the Chapter 
LINES AND ANGLES  No Deletion 
TRIANGLES  Proof of the theorem deleted Two triangles are congruent if any two angles and the included side of one triangle is equal to any two angles and the included side of the other triangle (ASA Congruence). Topic DeletedTriangle inequalities and relation between ‘angle and facing side' inequalities in triangles 
QUADRILATERALS  No deletion 
AREA  Delete the Chapter 
CIRCLES  There is one and only one circle passing through three given noncollinear points. If a line segment joining two points subtends equal angle at two other points lying on the same side of the line containing the segment, the four points lie on a circle. 
CONSTRUCTIONS  Construction of a triangle of given perimeter and base angles 
UNIT V Mensuration 
Chapter  Topics 
UNIT VIMENSURATION 
AREA  Application of Heron’s Formula in finding the area of a quadrilateral. 
SURFACE AREAS AND VOLUMES  No deletion 
UNIT VISTATISTICS & PROBABILITY 
Chapter  Topics 
STATISTICS  · Histograms (with varying base lengths), · Frequency polygons. · Mean, median and mode of ungrouped data. 
PROBABILITY  No deletion
