Question

A farmer has a rectangular field of length and breadth $250m$and $160m$ respectively.He wants to fence it with $4$rounds of barbed wire .What is the total length of barbed wire to be used in fencing ?

Answer 1

Step 1: Find the perimeter of field.

Given : Length $=250m$and breadth $=160m$

We know that perimeter of field ( Rectangle ) $=2(length+Breadth)$

$=2\times (250+160)$

$=2\times 410$

$=820m$

Step 2: Find the length of wire required to fence.

The farmer has to cover four times the perimeter of that field.

So, total length of rope required is four times its perimeter.

Therefore, length of rope required $=4\times 820$

$=3280m$

Hence, the total length of barbed wire to be used in fencing is $3280m$.