Question

The length of Marshall's rectangular poster is 2 times its width. if the perimeter is 24 inches, what is the area of the poster?

Answer 1

Step-by-step explanation:

area of rectangle =2(l+b)

24 =2(2x+x)

24=6x

x=24/6

x=4

length =2x4=8,breadth=4

area=lxb

=8x4

=32

Answer 2

Step-by-step explanation:

area rectangle =l(b)

given width =x

length is 2times it's width=2x

they also gave perimeter=24

now,

perimeter= 2(l+b)

2(l+b)=24

l+b=24/2

l+b=12

2x+x=12

3x=12

x=12/3=4

therefore,

x

width=4

length=2x=2(4)=8

then the area of the rectangle =lb

4(8)=32

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