A road is 7 m wide surrounds a circular park whose circumfrence is 88m. Find the cost of paving road at the rate of Rs 60 per meter
rehan2585:
Answer of the given question is 46200
i have edited it
i think its rs 3556
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given wide =7
circumference=88
so
2pir=88
2×22÷7×r=88
44÷7×r=88
r=88×7÷44
r=14
wide is 7
therfore area of field=7×7
=49
therfore cost=pi r square×area of field×rs 60
22÷7×14×14+49×60
therfore cost=rs3556
circumference=88
so
2pir=88
2×22÷7×r=88
44÷7×r=88
r=88×7÷44
r=14
wide is 7
therfore area of field=7×7
=49
therfore cost=pi r square×area of field×rs 60
22÷7×14×14+49×60
therfore cost=rs3556
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