Q17 of 37 Page 13

The diameter of a circular pond is 17.5m. It is surrounded by a path of width 3.5 m. Find the area of the path.


The diameter of a circular park = 17.5m


⇒ the radius of a circular park,


Width of path = 3.5m


⇒ radius of the park with path,


∴ Area of path = Area of outer circle – Area of inner circle


= πR2 – πr2


= π (R2 – r2)


= π (R – r)(R + r)





= 231 m2


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