answer the 9th question
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Let the radius of the park be r metre
Circumference of the park =352m
Therefore 2πr=352m
r=56 m
Therefore inner radius of the road =56m (r)
Outer radius of the road R = 56+7=63m
Area of the road =πRsquare-πrsquare
=2618 metre square
Circumference of the park =352m
Therefore 2πr=352m
r=56 m
Therefore inner radius of the road =56m (r)
Outer radius of the road R = 56+7=63m
Area of the road =πRsquare-πrsquare
=2618 metre square
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