area of rectangular field is1120m2.its length is 40m.find the cost of fencing the boundary of the field at rate of rupee 3.20per metre
Answers
Answered by
8
Answer:
Rs.217.
Step-by-step explanation:
area of rectangle= l*b
1120=40*b
b=1120/40= 28m.
perimeter of rectangle=2(l+b)
=2(40+28)
=2*68
= 136m.
cost of fencing its boundary=3.20*136
=217.6 Rs.
Answered by
0
Answer:
area of rectangle = L×B
1120m2=40× B
1120m2/40m = B
28m=B
perimeter of rectangular field
2(l+b)
2×(40m+28m)
2×68m
136m
cost of fencing at rate of 1m =₹ 3.20
cost of fencing of 136m=136×3.20
= ₹435.2
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