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Question

A rectangular piece of land measures 0.7 km by 0.5 km. Each side is to be fenced with four rounds of wire. What length of wire is needed?

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Solution

Each side should be fenced with four rounds of wire.

length of wire required =4× perimeter of land

perimeter of land =2(l+b)=2(0.7+0.5)

=2.4km

length of wire required =4×2.4=9.6km

9.6km length of wire is required to lay 4 rounds of fence.

1123722_1197400_ans_70b9a5fd4be341c38877d9b70b90f581.png

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