a rectangular field is 45 m long and 20 m wide find the cost of fencing it at ₹25.50 per metre.
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Answer:
Perimeter of rectangular field = 2 ( l + b)
= 2 ( 45m + 20m)
= 2 × 65m
= 130m
Cost of fencing per meter = ₹25.50
Cost of fencing 130m = ₹25.50 × 130m
= ₹3315
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2(45+20)
2×65
130
130×25.50
3,315
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