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?
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Answer:
Perimeter = 2(l+b)
= 2(0.7+0.5)
= 2(1.2)
= 2.4 km
2.4 km of wire is required for 1 row
To fence it with 4 rows of wire,
Total wire = 4 × 2.4 = 9.6 km
9.6 km of wire is required to fence the land
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