There is a circular garden of radius 21 metres. A path of width 3.5 metres is constructed just outside the garden. What is the area (in metres2) of the path?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 500.5
Outer radius = R = 24.5 m
Inner radius = r = 21 m
Hence,
Area of path = πR2 - πr2 = π(R + r)(R - r) = 22/7 × 45.5 × 3.5 = 500.5 m2