Question

the area of a rectangular field is 768 metres square and its length is 32m.Find (i)the cost of fencing it at Rs 20 per metre​

Answer 1

Area of a rectangular field =768 m sq
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Length= 32 m
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Breadth = ?
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Area = L × B
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768 =32 × B
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B = 768 ÷ 32
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B = 24 m sq
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Now,
Cost of fencing = ₹ 20
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768×20 = ₹ 15,360
_________________________

Hope this helps......

Answer 2

hey there

area of rectangle =l*b

b=area/length

b=768/32

b=24cm

perimeter of the field =2(l+b)

=2(32+24)

=2*56

=112cm

the cost of fencing the field =112*20

=2240

I hope it helps

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