A circular path of 2 m width runs around a circular park with radius 7 m. What is the area of the path?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 100.57 m2.
Inner radius = 7 m
Outer radius = 7 + 2 = 9 m
Area of outer circle = (22/7) × 92 = (22/7) × 81 = 254.57 m2
Area of inner circle = (22/7) × 72 = (22/7) × 49 = 154 m2
Area of path = 254.57 - 154 = 100.57 m2