Some important points to revise from the chapter are: Some of Euclid’s axioms are: (1) Things which are equal to the same thing are equal to one another. (2) If equals are added to equals, the wholes ...

Class 9 Maths Chapter 6 Lines and Angles is available here for download in PDF format. We have provided here the latest edition of the chapter which is published by the NCERT on its official website.