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.

This is for the first time that the Baudhāyana–Pythagoras Theorem has been introduced in Class 8 NCERT Math textbook.

Instead of presenting the theorem as an abstract formula, the book draws from Baudhayana's Sulba Sutra to explain the concept ...

NCERT Mathematics Textbook: The "?" mark is used in the textbook to indicate students to start thinking NCERT New Class 8 Mathematics Textbook Ganita Prakash: The National Council of Educational ...

NCERT’s new Class 8 maths book now calls it the Baudhayana–Pythagoras Theorem, crediting ancient Indian scholar Baudhayana.