Question

A farmer had a rectangular plot measuring 500 m by 100 m. If he fences the plot 4 times with barbed wire, what should be the length of the wire?

[2 marks]

Answer 1

Solution:

Given: Length of the plot = 500 m
Breadth of the plot = 100 m
The farmer fences the rectangular plot four times.
$\Rightarrow$ Length of the wire = 4 $\times$ Perimeter of the rectangle
= 4 $\times$ 2 (length + breadth)

[1 mark]

= 4 $\times$ 2 (500 + 100)
= 4 $\times$ 2 (600)
= 4800 m
Therefore, the length of the wire should be 4800 m.

[1 mark]