How many chapters are there in Class 9 Maths according to NCERT?
The NCERT Class 9 Mathematics textbook comprises of 12 chapters namely, Number Systems, Polynomials, Coordinate Geometry, Linear Equation with Two Variables, Introduction to Euclid’s Geometry, Lines and Angles, Triangles, Quadrilaterals, Circles, Heron’s Formula, Surface Areas and Volumes, and Statistics.