Question

The lenght of marshalls rectangular poster is 2 times its width. If the perimeter is 24 inches, what is the area of the poster?

Answer 1

let the width of marshalls rectangular poster be=x
let the length of marshalls rectangular poster be=2x

given perimeter is 24

permiter of a rectangle is 2(l+b)

2(l+b)=24
2(2x+x)=24
6x=24
x=4

hence x is the width amd width =6inches
length =2x=12 inches

hence area of a rectangle=l*b=12*6=72


inches is the required are of marshalls rectangular poster