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 metres$$^2$$) of the path?
Area of circular garden=$$πr^2$$=π×21×21
=1386 .
Area of the garden with the path=$$π(21+3.5)^2$$=1886.50.
So,area of path=1886.5-1386=500.50.
E is correct choice.
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