Question

Find the perimeter in meter. if the area of a rectangular box is 360m square and length is 12m

Answer 1

Length = 12m
Breadth = Xm
Area = 360m = L×B = 12×X
= 360m = 12x
X = 360/12
X = 30m

so, perimeter = 2(L+B)
= 2(12+30)
= 2(42)
= 84m.