Question: A road that is 14 m wide surrounds a circular path of whose circumference is 132 m. What will be the area of road?

A: 2462 m²
B: 2464  m²
C: 2468 m²
D: 2470 m²

Ans: B
Solution: Let radius of the circular path be r
So, 2π r = 132
or, 2 * 22/7 * r =132
or r = 21
Radius of circular Path including road = 21 + 14 = 35
So, area of the road = π(35² -  21²) = 2464