NCERT Exercise 11.1 - Q5 - Areas Related to Circles

Question: In a circle of radius 21 cm, an arc subtends an angle of at the centre. Find: (i) length of the arc, (ii) area of the sector, (iii) area of segment.

Answer: Arc length is 22 cm, sector area is 231 cm^2, and segment area is (231 - 441—3/4) cm^2 (approx 40.05 cm^2).

Full step-by-step NCERT solution with diagrams on Something by Zero.