A road 3.5m wide surrounds a circular plot whose circumference is 44 m . find the cost of paving the road at rs. 20 per m square
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here πD=44
D=44/π
the dia of plot is the length of road
the width of road=3.5m
area of road=(44/π)×3.5=49.01meter square
the cost of paving the road=20/meter square
so the total cost of paving=49.01×20=980.39₹
D=44/π
the dia of plot is the length of road
the width of road=3.5m
area of road=(44/π)×3.5=49.01meter square
the cost of paving the road=20/meter square
so the total cost of paving=49.01×20=980.39₹
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