Answer:
[tex]125.9 cm^2[/tex]
Step-by-step explanation:
the data we have is
height = 2.2cm
long = 9.1cm
width = 3.8cm
the area of the top and bottom is given by:
[tex]long*width =9.1*3.8=34.58cm^2[/tex]
since we need both the top and the bottom covered we multiply by 2:
[tex]2(34.58)=69.16cm^2[/tex]
Now for the area of the front and back:
[tex]long*height=9.1*2.2=20.02cm^2[/tex]
and also since we need both front and back we multiply by 2:
[tex]2(20.02)=40.04cm^2[/tex]
the area for the sides:
[tex]width*height=3.8*2.2=8.36cm^2[/tex]
and we multiply by 2 to get both sides:
[tex]2(8.36)=16.72cm^2[/tex]
and finally we add all the areas:
[tex]area=69.16+40.04+16.72=125.9cm^2[/tex]
the amount of wrapping paper needed is [tex]125.9 cm^2[/tex]
