Question

The area of small rectangle plot is 84 m2 if the difference between its lenght and the breadth is 5 m find its perimeter

Answer 1

maybe this would help...
take one side as x other as x+5
put in the formula
$84 = (x )\times( x + 5)$answer=7
if x=7
x+5=12
perimeter formula
$2(l + w) \\ 2(7 + 12)$
answer=38