Question

A rectangle park with lenght 30.5 m and breadth 20.5 m is to be fenced with a barbed wire . how much barbed fire is needed ?​

Answer 1

$\red{\textbf{Answer :- 102m}}$

Step-by-step explanation:

$\red{\textbf{Given :-}}$

$length \: of \: park \: (l) = 30.5m$

$breadth \: of \: park \: (b) = 20.5m$

$\red{\textbf{To find :-}}$

$how \: much \: barbed \: wire \: is \: needed$

$we \: know \: that,$

$perimeter \: of \: rectangular \: park =$

$= 2 \times (l + b)$

$= 2 \times (30.5m + 20.5m)$

$= 2 \times 51.0m$

$= 102.0m$

$= 102m$

$Thus, \: 102m \: of \: barbed \: wire \: is \: needed \: to \:$

$fence \: the \: park.$