What is the area (in m2)) of the circular path of uniform width of 1.4 m surrounding a circular garden of diameter 126 m. (Take π = )
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 560.56
Diameter of garden = 126 m
Radius = 126 ÷ 2 = 63 m
Width of path = 1.4 m
Outer radius = 63 + 1.4 = 64.4 m
Area of path = π × (Outer radius² − Inner radius²)
= 22/7 × (64.42−632) = 22/7 × (4147.36 − 3969)
= 22/7 ×178.36 = 560.56 m2