Q. 54.2( 140 Votes )

A rectangle piece

Answer :

It is given in the question that,

Length of land, l = 0.7 km


Breadth of land, b = 0.5 km


We know that,


Perimeter = 2 × (l + b)


= 2 × (0.7 + 0.5)


= 2 × 1.2


= 2.4 km


Now, one round of fencing the piece of land will require 2.4 km of wire.

Thus, four rounds of fencing will require = 4 × 2.4 = 9.6 km

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