What will be the cost of fencing a circular field whose area is 5544sq m? The cist of fencing is 8 per sq m
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Area of field = 5544 m^2
=> pi × r^2 = 5544
=> 22 / 7 r^2 = 5544
=> r^2 = 5544 × 7 /22
=> r^2 = 252 × 7
=> r^2 = 1764
=> r = 42 m
Circumference of field = 2 × pi × r
= 2 × 22 × 42 / 7
= 44 × 6
= 264 m
Cost of fencing = 264 × 8
= Rs 2112
=> pi × r^2 = 5544
=> 22 / 7 r^2 = 5544
=> r^2 = 5544 × 7 /22
=> r^2 = 252 × 7
=> r^2 = 1764
=> r = 42 m
Circumference of field = 2 × pi × r
= 2 × 22 × 42 / 7
= 44 × 6
= 264 m
Cost of fencing = 264 × 8
= Rs 2112
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