Previous-Syllabus Resources & Curriculum Mapping
Following the National Education Policy (NEP) curriculum reform, NCERT reorganized Class 9 Mathematics into two parts titled Ganita Manjari. Below you will find the exact chapter mapping between the earlier single-volume textbook and the current curriculum, along with archived exercise solutions preserved for supplementary reference and exam practice.
Study the current curriculum here: Class 9 Maths Hub (14 Chapters) or open Ganita Manjari Part 2 Textbook Hub.
Curriculum Cross-Reference Table
Use this reference table to find where earlier textbook chapters and exercise questions now live in the latest NCERT Ganita Manjari syllabus:
| Earlier NCERT Edition | Current Ganita Manjari Equivalent | Curriculum Status | Direct Study Links |
|---|---|---|---|
| Chapter 9: Circles Theorems on chords, subtended angles, cyclic quadrilaterals. |
Chapter 5: Circles Preserved in Ganita Manjari Part 2 with geometric reasoning. |
Retained & Streamlined |
Current Ch 5 Notes Archived Solutions |
| Chapter 10: Heron’s Formula Triangular area using semi-perimeter \(s = \frac{a+b+c}{2}\). |
Chapter 6: Measuring Space: Perimeter & Area Integrated into spatial measurement module. |
Integrated Chapter |
Current Ch 6 Notes Archived Ch 10 Notes |
| Chapter 11: Surface Areas & Volumes Formulas for cubes, cuboids, cylinders, cones, and spheres. |
Chapter 14: Math of Space: Surface Area & Volume Ganita Manjari Part 2 spatial geometry unit. |
Reindexed to Ch 14 |
Current Ch 14 Notes Archived Solutions |
| Chapter 12: Statistics Bar graphs, histograms, frequency polygons, mean, median, mode. |
Chapter 10: Understanding Data Ganita Manjari Part 2 data interpretation unit. |
Focus on Data Handling |
Current Ch 10 Notes Archived Ch 12 Notes |
Archived Exercise Solutions & Supplementary Notes
Access step-by-step solved questions from the earlier NCERT textbook for extended practice and test preparation:
Circles (Earlier Chapter 9)
Comprehensive proof bank for chord bisection, equal chord subtended angles, cyclic quadrilateral angle sums, and theorem applications.
Heron’s Formula (Earlier Chapter 10)
Calculations for scalene triangles, park land plots, perimeter ratio problems, and quadrilateral area decomposition.
Surface Area and Volume (Earlier Chapter 11)
Solid geometry questions covering curved surface area, total surface area, and capacities of conical tents, hemispherical bowls, and cylindrical tanks.
Statistics (Earlier Chapter 12)
Data representation exercises, frequency distributions, adjusted frequency histograms, and ungrouped central tendency measures.