NCERT Exercise 1.2 - Q4 - Number Systems
Question: Classroom activity: Construct the 'square root spiral' depicting sqrt(2), sqrt(3), sqrt(4), ...
Answer: Square root spiral: successive unit perpendiculars create hypotenuses OP₂=sqrt(2), OP₃=sqrt(3), OP₄=2, OP₅=sqrt(5), etc.
Full step-by-step NCERT solution with diagrams on Something by Zero.