Answer:
Area of the poster is [tex]1728[/tex] square inches.
Step-by-step explanation:
First let's convert feet into inches.
1 feet = 12 inches
Length of the poster in inches:
[tex]4[/tex] feet = [tex]4*12[/tex] inches
=[tex]48[/tex] inches
Width of the poster in inches :
[tex]3[/tex] feet = [tex]3*12[/tex] inches
=[tex]36[/tex] inches
Area of a rectangle = Length * Width
Area of the poster = [tex]48*36[/tex]
=[tex]1728[/tex] square inches