Question 1154402

a solid cube with a side {{{12cm}}} has a volume of

{{{(12cm)^3=1728cm^3}}}

since the volume of  a pyramid is  {{{1/3}}} of  the volume  a solid cube, the volume of  a pyramid is 

{{{(1/3)1728cm^3=576cm^3}}}

 the rest {{{2/3}}} is the volume which was cut away, so {{{2*576cm^3=1152cm^3}}}