Volume of cuboid = length x breadth x height where
length = 3 ft
Breadth,= 1 ft
Height = 3/2 ft
Volume of cuboid, V=
[tex]\begin{gathered} Volume=3\text{ }\times1\frac{1}{2}\times1 \\ where1\frac{1}{2}=\frac{3}{2}\text{ (improper fraction)} \\ Volume=3\text{ }\times\frac{3}{2}\times1\text{ = }\frac{9}{2}\text{ = 4}.5\text{ and 9 mod 2 = 1} \\ Volume\text{ = 4.5 cu ft or 4}\frac{1}{2}\text{ cu ft} \end{gathered}[/tex]Therefore, volume of cuboid is 4.5 cu ft