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Rd sharma solutions

A rectangular piece of land measure 0.7 km by 0.5 km. Each side is to be fenced with four rows ofwires. What length of the wire is needed?

It is given that

Measure of rectangular piece of land = 0.7 km × 0.5 km

We know that

Perimeter = 2 (L + B)

By substituting the values

Perimeter = 2 (0.7 + 0.5) = 2 × 1.2 = 2.4 km

The above obtained perimeter = one row of wire needed to fence the rectangular piece of land

So the length of wire needed to fence the land with 4 rows of wire = 4 × 2.4 = 9.6 km

Hence, the length of wire needed is 9.6 km.

It is given that

Measure of rectangular piece of land = 0.7 km × 0.5 km

We know that

Perimeter = 2 (L + B)

By substituting the values

Perimeter = 2 (0.7 + 0.5) = 2 × 1.2 = 2.4 km

The above obtained perimeter = one row of wire needed to fence the rectangular piece of land

So the length of wire needed to fence the land with 4 rows of wire = 4 × 2.4 = 9.6 km

Hence, the length of wire needed is 9.6 km.

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