NCERT Class 9 Maths Lab Manual · Activity 1 – Construct a Square Root Spiral · Activity 2 – Represent Some Irrational Numbers on the Number Line · Activity 3 – Activity 1 – Divide a Line Segment into Number of Equal Parts · Activity 2 – Divide a Thin Strip of Paper into Number of Equal Parts · Activity 3 – Represent an Maths Activity, Projects, NCERT Laboratory Manual Books for Class 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1 in English and Hindi Medium with NCERT solutions Activity-1 – An Irrational Number ; Activity-2 – Square Root Spiral ; Activity-3 – Algebraic Identity (a + b) = a + 2ab + b ; Activity-4 – Algebraic Identity (a – CBSE Class 9 Maths Lab Manual Chapters wise Download here in pdf format. These research lab Manual is also freely downloadable and used as a book of facts. CBSE Class 9 Maths Lab Manual Chapters wise Download here in pdf format. These research lab Manual is also freely downloadable and used as a book of facts. Here, we have provided complete details on the CBSE Class 9 Maths Laboratory Manual, including the laboratory's activities and mathematical equipment.