Answer:
[tex]7.5ft^2[/tex]
Step-by-step explanation:
Length of cushion=l=1.5 feet
Width of cushion=b=1.5 feet
Height of cushion=h=0.5 feet
We have to find the least amount of fabric that will be needed to cover the couch cushion.
Surface area of cuboid=[tex]2(lb+bh+hl)[/tex]
Using the formula
Fabric needed to cover the couch cushion=[tex]2(1.5\times 1.5+1.5\times 0.5+1.5\times 0.5) ft^2[/tex]
Fabric needed to cover the couch cushion=[tex]2(2.25+0.75+0.75)ft^2[/tex]
Fabric needed to cover the couch cushion=[tex]7.5ft^2[/tex]
