Question

a farmer has a rectangular field of length and breadth 230m and 170m respectively .He wants to fence it with barbed wire 3 times along all the 4 sides.How long barbef wire does he need?

Answer 1

heya!
yr ans is here...
length = 230m
breadth=170m
perimeter of rectangle = 2(l+b)
= 2(230+170)
= 2(400)
= 800
farmer want to fence it 3 times.
So,
=800x3
=2400m
Therefore,he need 2400 meters of barbed wire

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Answer 2

The length of barbed wire required is 2400 m.

• Length of the wire is 230 m and breadth of the wire is  170 m.
• We have to find the length of wire required to fence the wire three times.
• Perimeter of the rectangle is 2(length× breadth).

Perimeter of field = 2 (230+170) = 2 (400) = 800 m.

• Perimeter of the rectangle is 800 m.
• Length of wire required to fence once = 800 m

• Now it is to be fenced 3 times.

• Total wire required to fence the field = 3 × perimeter = 3×800 = 2400 m
• Total wire required is 2400 m.