17. A rectangular piece of land measures 0.8 km by 0.6 km. Each side is to be fenced with three rows of wire. Find the length of the wire needed. If the cost of fencing is 50 per metre, find the total cost of fencing the land.
PLS GIVE THE EXPLANATION
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Answer:
4200000m ans
Step-by-step explanation:
2(l+b)= 2(0.6+0.8)= 1.4×2=2.8km=28000m three rows=28000×3= 84000m , if 1m=50rupees then, 84000×5= 4200000m ans hope so it helps
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