Answer :
Volume of prism: l*w*h = 7*4*212 = 5936 cm3
Volume of cube = s^3 = 12*12*12 = 1728 cm3
divide prism volume by cube volume:
5936/1728 = 3.435 cubes
Volume of cube = s^3 = 12*12*12 = 1728 cm3
divide prism volume by cube volume:
5936/1728 = 3.435 cubes