A rectangular piece of land measures 0.7 km by 0.5 km. Each side is to be fenced with 4 rows of wires. What is the length of the wire needed?
Answer:
Length of rectangular piece of land = 0.7 km
Breadth of rectangular piece of land = 0.5 km
Perimeter of rectangular piece of land = 2(length + breadth) = 2(0.7 + 0.5) = 2(1.2) = 2.4 km
Length of the wire needed = 4
2.4 = 9.6 km
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