Question

b. The area of a rectangular field is 456 sq. m and its length is 24 m. Find the
breadth of the field and the cost of fencing itat the rate of 8.50 per metre.
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Answer 1

Breadth = area/length

= 456/24

= 19M

cost of fencing at 8.50 per metre .

firstly, find the perimeter of rectangular field = 2×(length + breadth )

= 2×( 19 + 24 )

= 2× 43

=86m

cost of fencing = 8.50 × perimeter of rectangular field .

cost of fencing = 8.50 × 86

= 731 rupees.