a circular path whose circumstances is 616m has path inside the whose width is 14m all around the park excluding the path and also find the cost of grassing on it at the rate of 1.40 p m^2
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2πr=616
r=616÷2×π
=98m
area of park = πr^2=30184m^2
radius of inner circle (excluding park width)=98-14=84m
area of inner circle = π×84^2=22176m^2
area of path = 30184-22176=8008
cost = 8008×1.4=Rs11,211.2
r=616÷2×π
=98m
area of park = πr^2=30184m^2
radius of inner circle (excluding park width)=98-14=84m
area of inner circle = π×84^2=22176m^2
area of path = 30184-22176=8008
cost = 8008×1.4=Rs11,211.2
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