NCERT Solutions Class 9 Mathematics NCERT Solutions Class 9 Mathematics Chapter 1 – Number System Ex. 1.1 Ex. 1.2 Ex. 1.3 Ex. 1.4 Ex. 1.5 Ex. 1.6 Chapter 2 – Polynomials Ex. 2.1 Ex. 2.2 Ex. 2.3 Ex. 2.4 Ex. 2.5 Chapter 7 – Triangles Ex. 7.1 Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook