$\mathrm{The} \mathrm{measure} \mathrm{of} \mathrm{the} \mathrm{side} \mathrm{of} \mathrm{a} \mathrm{cube} \mathrm{which} \mathrm{is} \mathrm{equal} \mathrm{in} \mathrm{volume} \mathrm{to} \mathrm{a} \mathrm{cuboid} \mathrm{whose} \mathrm{dimensions} \mathrm{are} 12\mathrm{cm}\times 9\mathrm{cm}\times 2\mathrm{cm} \mathrm{is}$

 

 

Volume of cube

Volume of cuboid

Side of cube a