The area of a rectangular field is 36.75 sq m. If its length is 7 m 35 cm, find the
breadth of the field.
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Given :Area of a rectangular field=450sq.m
Lengthl=30m
(i)Breadth b=
length
Area
=
30
450
=15m
(ii)PerimeterP=2(l+b)=2×(30+25)=2×55=110m
(iii)Cost of fencing for 1m=Rs.25.50
Cost of fencing of 110m is =110×25.50=Rs.2805
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