A road 3.5m wide surrounds a circular plot whose circumferences is 44 m. Find the cost of paving the road at Rs 20 per sq. m.
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A road 3.5m wide surrounds a circular plot whose circumferences is 44 m. Find the cost of paving the road at Rs 20 per sq. m.
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A road is 3.5 m wide surrounding a circular plot whose circumference is 44 m. Find the cost of paving the road at Rs. 10 per m
2
Answer
Radius of plot=
2π
44
=
44
44
×7=7 m.
Area of road=π[(10.5)
2
−7
2
]=61.25×π
=192.42255 m
2
.
∴Cost Rs. =1924.22
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