The diameter of circular field is 14m. Find the cost of fencing the field with barbed wire if the cost of 1m wire is rs.7.50
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Answered by
26
diameter = twice of radius so r=7 perimeter of circle is 2πr 2×7×22÷7=44. cost of 1m wire is RS 7.5 and cost of 44m is 44×7=rs330
Answered by
12
diameter=14m
radius =7m
perimeter of circle=2πr
=2×22/7 ×14
=2×22×2
=4×22
=88m
cost of fencing 1m=rs.7.50
cost of fencing 88m= 7.50×88
=rs.660
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