Q. Which Costs more-fencing a rectangular field of length and breadth 18 m and 12 m respectively, or fencing a square field of side 30.5 m ? The cost of fencing is rupees 15 per metre.
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Solution:-
fencing cost of rectangular field length :
18m breadth : 12m perimeter
2 ( l + b ) = 2
( 18 +12 = 2x30 = 60m cost of fencing
: 60x15 = 900
fencing cost of square field side
: 30.5m perimeter :
4xside = 4x30.5 = 122m
cost of fencing :
122x15 = 1830
Hence , square field will cost more for fencing .
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