Question

a park of of 15.3m leangt 12.2 m breadth is to be surrounded by 4 layers of barbed wire.find the length of barbed require.​

Answer 1

$\sf \Large Solution!!$

$\sf \large Given:$

$\sf \to Length=15.3\:m$

$\sf \to Breadth=12.2\:m$

$\sf \to To\:be\:surrounded\:by\:4\:layers\:of\:barbed\:wire.$

$\sf \large To\:find:$

$\sf \to Length\:of\:barbed\:wire\:required.$

$\sf \large So,$

$\sf \boxed{P=2(L+B)}$

$\sf \to P=2(15.3\:m+12.2\:m)$

$\sf \to P=2(27.5\:m)$

$\sf \to P=55\:m$

$\sf As\:we\:know,$

$\sf park\:is\:to\:be\:surrounded\:by\:4\:layers\:of\:barbed\:wire.$

$\sf \large So,$

$\sf \to Length\:of\:barbed\:wire=4\times Perimeter$

$\sf \to Length\:of\:barbed\:wire=4\times 55\:m$

$\sf \boxed{\bigstar Length\:of\:barbed\:wire=220\:m}$