Find the volume of a cube whose side is 4cm    (ii)  8cm    (iii)  1.5dm    (iv)  1.2m   (d  25mm

Explanation

(i) Given: Sides of cube `(a)=4 cm`
Volume of a cube`=a^3`
`V=(4 cm)^3`
`V=4cmtimes4cmtimes4cm`
`V=64 cm^3`

(ii) Given: Sides of cube `(a)=8 cm`
Volume of a cube`=a^3`
`V=(8 cm)^3`
`V=8cmtimes8cmtimes8cm`
`V=512 cm^3`

(iii) Given: Sides of cube `(a)=1.5 dm=15 cm`
Volume of a cube`=a^3`
`V=(15 cm)^3`
`V=15cmtimes15cmtimes15cm`
`V=3375 cm^3`

(iv) Given: Sides of cube `(a)=1.2 m`
Volume of a cube`=a^3`
`V=(1.2 m)^3`
`V=1.2mtimes1.2mtimes1.2m`
`V=1.728 m^3`

(v) Given: Sides of cube `(a)=25 mm`
Volume of a cube`=a^3`
`V=(25 mm)^3`
`V=25mmtimes25mmtimes25mm`
`V=15625 mm^3`